51976522231 has 2 divisors, whose sum is σ = 51976522232. Its totient is φ = 51976522230.

The previous prime is 51976522159. The next prime is 51976522249. The reversal of 51976522231 is 13222567915.

It is a happy number.

51976522231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51976522231 - 2¹³ = 51976514039 is a prime.

It is a super-2 number, since 2×51976522231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51976522831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25988261115 + 25988261116.

It is an arithmetic number, because the mean of its divisors is an integer number (25988261116).

Almost surely, 2^51976522231 is an apocalyptic number.

51976522231 is a deficient number, since it is larger than the sum of its proper divisors (1).

51976522231 is an equidigital number, since it uses as much as digits as its factorization.

51976522231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 226800, while the sum is 43.

The spelling of 51976522231 in words is "fifty-one billion, nine hundred seventy-six million, five hundred twenty-two thousand, two hundred thirty-one".