51334831 has 2 divisors, whose sum is σ = 51334832. Its totient is φ = 51334830.

The previous prime is 51334813. The next prime is 51334837. The reversal of 51334831 is 13843315.

Together with previous prime (51334813) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51334831 - 2¹¹ = 51332783 is a prime.

It is a super-2 number, since 2×51334831² = 5270529747597122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51334831.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51334837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25667415 + 25667416.

It is an arithmetic number, because the mean of its divisors is an integer number (25667416).

Almost surely, 2^51334831 is an apocalyptic number.

51334831 is a deficient number, since it is larger than the sum of its proper divisors (1).

51334831 is an equidigital number, since it uses as much as digits as its factorization.

51334831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 28.

The square root of 51334831 is about 7164.8329359448. The cubic root of 51334831 is about 371.6527741416.

It can be divided in two parts, 513 and 34831, that added together give a square (35344 = 188²).

The spelling of 51334831 in words is "fifty-one million, three hundred thirty-four thousand, eight hundred thirty-one".