125267520051 has 12 divisors (see below), whose sum is σ = 181033708128. Its totient is φ = 83469340944.

The previous prime is 125267520023. The next prime is 125267520089. The reversal of 125267520051 is 150025762521.

125267520051 is a `hidden beast` number, since 1 + 25 + 2 + 67 + 520 + 0 + 51 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-125267520051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125267519988 and 125267520015.

It is not an unprimeable number, because it can be changed into a prime (125267540051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3509515 + ... + 3545028.

It is an arithmetic number, because the mean of its divisors is an integer number (15086142344).

Almost surely, 2^125267520051 is an apocalyptic number.

125267520051 is a deficient number, since it is larger than the sum of its proper divisors (55766188077).

125267520051 is a wasteful number, since it uses less digits than its factorization.

125267520051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7056522 (or 7056519 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The spelling of 125267520051 in words is "one hundred twenty-five billion, two hundred sixty-seven million, five hundred twenty thousand, fifty-one".