125617054242 has 16 divisors (see below), whose sum is σ = 262157330880. Its totient is φ = 40051814352.

The previous prime is 125617054223. The next prime is 125617054261. The reversal of 125617054242 is 242450716521.

It is an interprime number because it is at equal distance from previous prime (125617054223) and next prime (125617054261).

It is a self number, because there is not a number n which added to its sum of digits gives 125617054242.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 455134117 + ... + 455134392.

It is an arithmetic number, because the mean of its divisors is an integer number (16384833180).

Almost surely, 2^125617054242 is an apocalyptic number.

125617054242 is an abundant number, since it is smaller than the sum of its proper divisors (136540276638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125617054242 is a wasteful number, since it uses less digits than its factorization.

125617054242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910268537.

The product of its (nonzero) digits is 134400, while the sum is 39.

The spelling of 125617054242 in words is "one hundred twenty-five billion, six hundred seventeen million, fifty-four thousand, two hundred forty-two".