511457465531 has 2 divisors, whose sum is σ = 511457465532. Its totient is φ = 511457465530.

The previous prime is 511457465447. The next prime is 511457465587. The reversal of 511457465531 is 135564754115.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 511457465531 - 2³⁸ = 236579558587 is a prime.

It is a super-2 number, since 2×511457465531² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (511457665531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255728732765 + 255728732766.

It is an arithmetic number, because the mean of its divisors is an integer number (255728732766).

Almost surely, 2^511457465531 is an apocalyptic number.

511457465531 is a deficient number, since it is larger than the sum of its proper divisors (1).

511457465531 is an equidigital number, since it uses as much as digits as its factorization.

511457465531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1260000, while the sum is 47.

The spelling of 511457465531 in words is "five hundred eleven billion, four hundred fifty-seven million, four hundred sixty-five thousand, five hundred thirty-one".