125061078531 has 16 divisors (see below), whose sum is σ = 174181849344. Its totient is φ = 79664839584.

The previous prime is 125061078481. The next prime is 125061078553. The reversal of 125061078531 is 135870160521.

It is not a de Polignac number, because 125061078531 - 2⁷ = 125061078403 is a prime.

It is a super-2 number, since 2×125061078531² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 125061078531.

It is not an unprimeable number, because it can be changed into a prime (125061070531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 891616 + ... + 1022301.

It is an arithmetic number, because the mean of its divisors is an integer number (10886365584).

Almost surely, 2^125061078531 is an apocalyptic number.

125061078531 is a deficient number, since it is larger than the sum of its proper divisors (49120770813).

125061078531 is a wasteful number, since it uses less digits than its factorization.

125061078531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1914890.

The product of its (nonzero) digits is 50400, while the sum is 39.

The spelling of 125061078531 in words is "one hundred twenty-five billion, sixty-one million, seventy-eight thousand, five hundred thirty-one".