51677072231 has 2 divisors, whose sum is σ = 51677072232. Its totient is φ = 51677072230.

The previous prime is 51677072201. The next prime is 51677072257. The reversal of 51677072231 is 13227077615.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51677072231 is a prime.

It is a super-2 number, since 2×51677072231² (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 (51677072201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25838536115 + 25838536116.

It is an arithmetic number, because the mean of its divisors is an integer number (25838536116).

Almost surely, 2^51677072231 is an apocalyptic number.

51677072231 is a deficient number, since it is larger than the sum of its proper divisors (1).

51677072231 is an equidigital number, since it uses as much as digits as its factorization.

51677072231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 123480, while the sum is 41.

The spelling of 51677072231 in words is "fifty-one billion, six hundred seventy-seven million, seventy-two thousand, two hundred thirty-one".