125489255867 has 2 divisors, whose sum is σ = 125489255868. Its totient is φ = 125489255866.

The previous prime is 125489255831. The next prime is 125489255911. The reversal of 125489255867 is 768552984521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125489255867 - 2²⁶ = 125422147003 is a prime.

It is not a weakly prime, because it can be changed into another prime (125489255807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62744627933 + 62744627934.

It is an arithmetic number, because the mean of its divisors is an integer number (62744627934).

Almost surely, 2^125489255867 is an apocalyptic number.

125489255867 is a deficient number, since it is larger than the sum of its proper divisors (1).

125489255867 is an equidigital number, since it uses as much as digits as its factorization.

125489255867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384000, while the sum is 62.

The spelling of 125489255867 in words is "one hundred twenty-five billion, four hundred eighty-nine million, two hundred fifty-five thousand, eight hundred sixty-seven".