125056521107 has 16 divisors (see below), whose sum is σ = 144026591232. Its totient is φ = 106364512800.

The previous prime is 125056521089. The next prime is 125056521119. The reversal of 125056521107 is 701125650521.

It is not a de Polignac number, because 125056521107 - 2²² = 125052326803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125056523107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 739982 + ... + 893132.

It is an arithmetic number, because the mean of its divisors is an integer number (9001661952).

Almost surely, 2^125056521107 is an apocalyptic number.

125056521107 is a deficient number, since it is larger than the sum of its proper divisors (18970070125).

125056521107 is a wasteful number, since it uses less digits than its factorization.

125056521107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154058.

The product of its (nonzero) digits is 21000, while the sum is 35.

The spelling of 125056521107 in words is "one hundred twenty-five billion, fifty-six million, five hundred twenty-one thousand, one hundred seven".