51939332227 has 2 divisors, whose sum is σ = 51939332228. Its totient is φ = 51939332226.

The previous prime is 51939332213. The next prime is 51939332231. The reversal of 51939332227 is 72223393915.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51939332227 - 2²³ = 51930943619 is a prime.

It is not a weakly prime, because it can be changed into another prime (51939332257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25969666113 + 25969666114.

It is an arithmetic number, because the mean of its divisors is an integer number (25969666114).

Almost surely, 2^51939332227 is an apocalyptic number.

51939332227 is a deficient number, since it is larger than the sum of its proper divisors (1).

51939332227 is an equidigital number, since it uses as much as digits as its factorization.

51939332227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 612360, while the sum is 46.

The spelling of 51939332227 in words is "fifty-one billion, nine hundred thirty-nine million, three hundred thirty-two thousand, two hundred twenty-seven".