51455158031 has 2 divisors, whose sum is σ = 51455158032. Its totient is φ = 51455158030.

The previous prime is 51455157991. The next prime is 51455158043. The reversal of 51455158031 is 13085155415.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51455158031 - 2³⁴ = 34275288847 is a prime.

It is a super-2 number, since 2×51455158031² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51455158061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25727579015 + 25727579016.

It is an arithmetic number, because the mean of its divisors is an integer number (25727579016).

Almost surely, 2^51455158031 is an apocalyptic number.

51455158031 is a deficient number, since it is larger than the sum of its proper divisors (1).

51455158031 is an equidigital number, since it uses as much as digits as its factorization.

51455158031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60000, while the sum is 38.

The spelling of 51455158031 in words is "fifty-one billion, four hundred fifty-five million, one hundred fifty-eight thousand, thirty-one".