125603656275 has 24 divisors (see below), whose sum is σ = 207681481840. Its totient is φ = 66983207040.

The previous prime is 125603656261. The next prime is 125603656289. The reversal of 125603656275 is 572656306521.

It is an interprime number because it is at equal distance from previous prime (125603656261) and next prime (125603656289).

It is not a de Polignac number, because 125603656275 - 2¹⁸ = 125603394131 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 973449 + ... + 1094901.

Almost surely, 2^125603656275 is an apocalyptic number.

125603656275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125603656275 is a deficient number, since it is larger than the sum of its proper divisors (82077825565).

125603656275 is a wasteful number, since it uses less digits than its factorization.

125603656275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135255 (or 135250 counting only the distinct ones).

The product of its (nonzero) digits is 2268000, while the sum is 48.

The spelling of 125603656275 in words is "one hundred twenty-five billion, six hundred three million, six hundred fifty-six thousand, two hundred seventy-five".