125725918203 has 8 divisors (see below), whose sum is σ = 186260619600. Its totient is φ = 83817278784.

The previous prime is 125725918177. The next prime is 125725918207. The reversal of 125725918203 is 302819527521.

125725918203 is a `hidden beast` number, since 1 + 2 + 57 + 2 + 591 + 8 + 2 + 0 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-125725918203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125725918207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2328257718 + ... + 2328257771.

It is an arithmetic number, because the mean of its divisors is an integer number (23282577450).

Almost surely, 2^125725918203 is an apocalyptic number.

125725918203 is a deficient number, since it is larger than the sum of its proper divisors (60534701397).

125725918203 is an equidigital number, since it uses as much as digits as its factorization.

125725918203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4656515498 (or 4656515492 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The spelling of 125725918203 in words is "one hundred twenty-five billion, seven hundred twenty-five million, nine hundred eighteen thousand, two hundred three".