125854565265 has 320 divisors, whose sum is σ = 274533380352. Its totient is φ = 54344908800.

The previous prime is 125854565231. The next prime is 125854565303. The reversal of 125854565265 is 562565458521.

125854565265 is a `hidden beast` number, since 1 + 2 + 5 + 8 + 54 + 565 + 26 + 5 = 666.

It is not a de Polignac number, because 125854565265 - 2¹⁸ = 125854303121 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 241563205 + ... + 241563725.

Almost surely, 2^125854565265 is an apocalyptic number.

125854565265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125854565265 is an abundant number, since it is smaller than the sum of its proper divisors (148678815087).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125854565265 is a wasteful number, since it uses less digits than its factorization.

125854565265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702 (or 693 counting only the distinct ones).

The product of its digits is 14400000, while the sum is 54.

The spelling of 125854565265 in words is "one hundred twenty-five billion, eight hundred fifty-four million, five hundred sixty-five thousand, two hundred sixty-five".