125297702591 has 2 divisors, whose sum is σ = 125297702592. Its totient is φ = 125297702590.

The previous prime is 125297702539. The next prime is 125297702599. The reversal of 125297702591 is 195207792521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125297702591 - 2¹⁰ = 125297701567 is a prime.

It is a super-2 number, since 2×125297702591² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125297702599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62648851295 + 62648851296.

It is an arithmetic number, because the mean of its divisors is an integer number (62648851296).

Almost surely, 2^125297702591 is an apocalyptic number.

125297702591 is a deficient number, since it is larger than the sum of its proper divisors (1).

125297702591 is an equidigital number, since it uses as much as digits as its factorization.

125297702591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 793800, while the sum is 50.

The spelling of 125297702591 in words is "one hundred twenty-five billion, two hundred ninety-seven million, seven hundred two thousand, five hundred ninety-one".