51020624531 has 2 divisors, whose sum is σ = 51020624532. Its totient is φ = 51020624530.

The previous prime is 51020624521. The next prime is 51020624539. The reversal of 51020624531 is 13542602015.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51020624531 - 2⁶ = 51020624467 is a prime.

It is a super-2 number, since 2×51020624531² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51020624494 and 51020624503.

It is not a weakly prime, because it can be changed into another prime (51020624539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25510312265 + 25510312266.

It is an arithmetic number, because the mean of its divisors is an integer number (25510312266).

Almost surely, 2^51020624531 is an apocalyptic number.

51020624531 is a deficient number, since it is larger than the sum of its proper divisors (1).

51020624531 is an equidigital number, since it uses as much as digits as its factorization.

51020624531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 51020624531 in words is "fifty-one billion, twenty million, six hundred twenty-four thousand, five hundred thirty-one".