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25212950475 = 352431779983
BaseRepresentation
bin10111011110110011…
…110001011111001011
32102002010121120221120
4113132303301133023
5403114003403400
615325505010323
71551541354146
oct273663613713
972063546846
1025212950475
11a769064959
124a779239a3
1324ba6a630b
14131277b05d
159c8738ca0
hex5decf17cb

25212950475 has 24 divisors (see below), whose sum is σ = 41782182912. Its totient is φ = 13415690400.

The previous prime is 25212950447. The next prime is 25212950507. The reversal of 25212950475 is 57405921252.

It is not a de Polignac number, because 25212950475 - 25 = 25212950443 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 357667 + ... + 422316.

It is an arithmetic number, because the mean of its divisors is an integer number (1740924288).

Almost surely, 225212950475 is an apocalyptic number.

25212950475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25212950475 is a deficient number, since it is larger than the sum of its proper divisors (16569232437).

25212950475 is a wasteful number, since it uses less digits than its factorization.

25212950475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780427 (or 780422 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 42.

The spelling of 25212950475 in words is "twenty-five billion, two hundred twelve million, nine hundred fifty thousand, four hundred seventy-five".

Divisors: 1 3 5 15 25 75 431 1293 2155 6465 10775 32325 779983 2339949 3899915 11699745 19499575 58498725 336172673 1008518019 1680863365 5042590095 8404316825 25212950475