125679556237 has 2 divisors, whose sum is σ = 125679556238. Its totient is φ = 125679556236.

The previous prime is 125679556199. The next prime is 125679556283. The reversal of 125679556237 is 732655976521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120416634121 + 5262922116 = 347011^2 + 72546^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125679556237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125679556837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62839778118 + 62839778119.

It is an arithmetic number, because the mean of its divisors is an integer number (62839778119).

Almost surely, 2^125679556237 is an apocalyptic number.

It is an amenable number.

125679556237 is a deficient number, since it is larger than the sum of its proper divisors (1).

125679556237 is an equidigital number, since it uses as much as digits as its factorization.

125679556237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23814000, while the sum is 58.

The spelling of 125679556237 in words is "one hundred twenty-five billion, six hundred seventy-nine million, five hundred fifty-six thousand, two hundred thirty-seven".