125705507 has 2 divisors, whose sum is σ = 125705508. Its totient is φ = 125705506.

The previous prime is 125705483. The next prime is 125705513. The reversal of 125705507 is 705507521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125705507 - 2²⁴ = 108928291 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (125705707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62852753 + 62852754.

It is an arithmetic number, because the mean of its divisors is an integer number (62852754).

Almost surely, 2^125705507 is an apocalyptic number.

125705507 is a deficient number, since it is larger than the sum of its proper divisors (1).

125705507 is an equidigital number, since it uses as much as digits as its factorization.

125705507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12250, while the sum is 32.

The square root of 125705507 is about 11211.8467256737. The cubic root of 125705507 is about 500.9389117857.

The spelling of 125705507 in words is "one hundred twenty-five million, seven hundred five thousand, five hundred seven".