125536125407 has 48 divisors (see below), whose sum is σ = 168103123200. Its totient is φ = 92515167360.

The previous prime is 125536125389. The next prime is 125536125431. The reversal of 125536125407 is 704521635521.

It is not a de Polignac number, because 125536125407 - 2⁶ = 125536125343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125536125107) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1046444 + ... + 1160222.

It is an arithmetic number, because the mean of its divisors is an integer number (3502148400).

Almost surely, 2^125536125407 is an apocalyptic number.

125536125407 is a deficient number, since it is larger than the sum of its proper divisors (42566997793).

125536125407 is a wasteful number, since it uses less digits than its factorization.

125536125407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113916 (or 113909 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 41.

The spelling of 125536125407 in words is "one hundred twenty-five billion, five hundred thirty-six million, one hundred twenty-five thousand, four hundred seven".