5156506554931 has 2 divisors, whose sum is σ = 5156506554932. Its totient is φ = 5156506554930.

The previous prime is 5156506554863. The next prime is 5156506555043. The reversal of 5156506554931 is 1394556056515.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5156506554931 is a prime.

It is a super-2 number, since 2×5156506554931² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5156506554431) 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, 2578253277465 + 2578253277466.

It is an arithmetic number, because the mean of its divisors is an integer number (2578253277466).

Almost surely, 2^{5156506554931} is an apocalyptic number.

5156506554931 is a deficient number, since it is larger than the sum of its proper divisors (1).

5156506554931 is an equidigital number, since it uses as much as digits as its factorization.

5156506554931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12150000, while the sum is 55.

The spelling of 5156506554931 in words is "five trillion, one hundred fifty-six billion, five hundred six million, five hundred fifty-four thousand, nine hundred thirty-one".