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25252775253 = 3219114690387
BaseRepresentation
bin10111100001001011…
…101100010101010101
32102011220112220021100
4113201023230111111
5403204202302003
615333450340313
71552534022316
oct274113542525
972156486240
1025252775253
11a7895958a2
124a8912a699
1324c5a0b184
141317b8660d
159cbea3ba3
hex5e12ec555

25252775253 has 12 divisors (see below), whose sum is σ = 36667208448. Its totient is φ = 16747040040.

The previous prime is 25252775173. The next prime is 25252775263. The reversal of 25252775253 is 35257725252.

25252775253 is a `hidden beast` number, since 2 + 5 + 2 + 52 + 77 + 525 + 3 = 666.

It is not a de Polignac number, because 25252775253 - 29 = 25252774741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25252775199 and 25252775208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25252775263) 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, 7343475 + ... + 7346912.

It is an arithmetic number, because the mean of its divisors is an integer number (3055600704).

Almost surely, 225252775253 is an apocalyptic number.

It is an amenable number.

25252775253 is a deficient number, since it is larger than the sum of its proper divisors (11414433195).

25252775253 is a wasteful number, since it uses less digits than its factorization.

25252775253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14690584 (or 14690581 counting only the distinct ones).

The product of its digits is 1470000, while the sum is 45.

The spelling of 25252775253 in words is "twenty-five billion, two hundred fifty-two million, seven hundred seventy-five thousand, two hundred fifty-three".

Divisors: 1 3 9 191 573 1719 14690387 44071161 132213483 2805863917 8417591751 25252775253