125555326645 has 32 divisors (see below), whose sum is σ = 175965408000. Its totient is φ = 85967114688.

The previous prime is 125555326591. The next prime is 125555326697. The reversal of 125555326645 is 546623555521.

It is not a de Polignac number, because 125555326645 - 2²¹ = 125553229493 is a prime.

It is a super-5 number, since 5×125555326645⁵ (a number of 57 digits) contains 55555 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1106986 + ... + 1215124.

It is an arithmetic number, because the mean of its divisors is an integer number (5498919000).

Almost surely, 2^125555326645 is an apocalyptic number.

It is an amenable number.

125555326645 is a deficient number, since it is larger than the sum of its proper divisors (50410081355).

125555326645 is an equidigital number, since it uses as much as digits as its factorization.

125555326645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108842 (or 108828 counting only the distinct ones).

The product of its digits is 5400000, while the sum is 49.

The spelling of 125555326645 in words is "one hundred twenty-five billion, five hundred fifty-five million, three hundred twenty-six thousand, six hundred forty-five".