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25300030052525 = 526116590183641
BaseRepresentation
bin1011100000010100111110…
…10011011101100010101101
310022120122210121001111010112
411300022133103131202231
511304003430143140100
6125450401235545405
75220603221114204
oct560123723354255
9108518717044115
1025300030052525
118074756437798
122a07394a5b265
131116a23499757
14636756b2a23b
152dd1a2700b35
hex17029f4dd8ad

25300030052525 has 12 divisors (see below), whose sum is σ = 31886332959924. Its totient is φ = 19908220368000.

The previous prime is 25300030052503. The next prime is 25300030052527. The reversal of 25300030052525 is 52525003000352.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 11113402340329 + 14186627712196 = 3333677^2 + 3766514^2 .

It is a de Polignac number, because none of the positive numbers 2k-25300030052525 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25300030052491 and 25300030052500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25300030052527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8295090296 + ... + 8295093345.

It is an arithmetic number, because the mean of its divisors is an integer number (2657194413327).

Almost surely, 225300030052525 is an apocalyptic number.

25300030052525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25300030052525 is a deficient number, since it is larger than the sum of its proper divisors (6586302907399).

25300030052525 is a wasteful number, since it uses less digits than its factorization.

25300030052525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16590183712 (or 16590183707 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 32.

Adding to 25300030052525 its reverse (52525003000352), we get a palindrome (77825033052877).

The spelling of 25300030052525 in words is "twenty-five trillion, three hundred billion, thirty million, fifty-two thousand, five hundred twenty-five".

Divisors: 1 5 25 61 305 1525 16590183641 82950918205 414754591025 1012001202101 5060006010505 25300030052525