51372931 has 2 divisors, whose sum is σ = 51372932. Its totient is φ = 51372930.

The previous prime is 51372913. The next prime is 51372967. The reversal of 51372931 is 13927315.

Together with previous prime (51372913) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51372931 - 2¹³ = 51364739 is a prime.

It is a super-2 number, since 2×51372931² = 5278356079061522, which contains 22 as substring.

It is equal to p_3078463 and since 51372931 and 3078463 have the same sum of digits, it is a Honaker prime.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 51372893 and 51372902.

It is not a weakly prime, because it can be changed into another prime (51372901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25686465 + 25686466.

It is an arithmetic number, because the mean of its divisors is an integer number (25686466).

Almost surely, 2^51372931 is an apocalyptic number.

51372931 is a deficient number, since it is larger than the sum of its proper divisors (1).

51372931 is an equidigital number, since it uses as much as digits as its factorization.

51372931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5670, while the sum is 31.

The square root of 51372931 is about 7167.4912626386. The cubic root of 51372931 is about 371.7446965833.

The spelling of 51372931 in words is "fifty-one million, three hundred seventy-two thousand, nine hundred thirty-one".