125023243555 has 32 divisors (see below), whose sum is σ = 172835739648. Its totient is φ = 85043088000.

The previous prime is 125023243529. The next prime is 125023243591. The reversal of 125023243555 is 555342320521.

It is not a de Polignac number, because 125023243555 - 2¹⁷ = 125023112483 is a prime.

It is a super-2 number, since 2×125023243555² (a number of 23 digits) contains 22 as substring.

It is a Duffinian 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, 21927205 + ... + 21932905.

It is an arithmetic number, because the mean of its divisors is an integer number (5401116864).

Almost surely, 2^125023243555 is an apocalyptic number.

125023243555 is a deficient number, since it is larger than the sum of its proper divisors (47812496093).

125023243555 is a wasteful number, since it uses less digits than its factorization.

125023243555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10627.

The product of its (nonzero) digits is 180000, while the sum is 37.

The spelling of 125023243555 in words is "one hundred twenty-five billion, twenty-three million, two hundred forty-three thousand, five hundred fifty-five".