125523525015 has 64 divisors (see below), whose sum is σ = 257289062400. Its totient is φ = 56874327552.

The previous prime is 125523524989. The next prime is 125523525037. The reversal of 125523525015 is 510525325521.

125523525015 is a `hidden beast` number, since 1 + 2 + 552 + 3 + 52 + 50 + 1 + 5 = 666.

It is not a de Polignac number, because 125523525015 - 2⁸ = 125523524759 is a prime.

It is a super-3 number, since 3×125523525015³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 480955 + ... + 694524.

It is an arithmetic number, because the mean of its divisors is an integer number (4020141600).

Almost surely, 2^125523525015 is an apocalyptic number.

125523525015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125523525015 is an abundant number, since it is smaller than the sum of its proper divisors (131765537385).

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

125523525015 is a wasteful number, since it uses less digits than its factorization.

125523525015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175613 (or 1175607 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

The spelling of 125523525015 in words is "one hundred twenty-five billion, five hundred twenty-three million, five hundred twenty-five thousand, fifteen".