125620471756531 has 2 divisors, whose sum is σ = 125620471756532. Its totient is φ = 125620471756530.

The previous prime is 125620471756487. The next prime is 125620471756543. The reversal of 125620471756531 is 135657174026521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125620471756531 - 2²⁵ = 125620438202099 is a prime.

It is a super-2 number, since 2×125620471756531² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (125620471756561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62810235878265 + 62810235878266.

It is an arithmetic number, because the mean of its divisors is an integer number (62810235878266).

Almost surely, 2^{125620471756531} is an apocalyptic number.

125620471756531 is a deficient number, since it is larger than the sum of its proper divisors (1).

125620471756531 is an equidigital number, since it uses as much as digits as its factorization.

125620471756531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584000, while the sum is 55.

The spelling of 125620471756531 in words is "one hundred twenty-five trillion, six hundred twenty billion, four hundred seventy-one million, seven hundred fifty-six thousand, five hundred thirty-one".