53307616631 has 2 divisors, whose sum is σ = 53307616632. Its totient is φ = 53307616630.

The previous prime is 53307616597. The next prime is 53307616711. The reversal of 53307616631 is 13661670335.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53307616631 is a prime.

It is a super-2 number, since 2×53307616631² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53307616231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26653808315 + 26653808316.

It is an arithmetic number, because the mean of its divisors is an integer number (26653808316).

Almost surely, 2^53307616631 is an apocalyptic number.

53307616631 is a deficient number, since it is larger than the sum of its proper divisors (1).

53307616631 is an equidigital number, since it uses as much as digits as its factorization.

53307616631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 41.

The spelling of 53307616631 in words is "fifty-three billion, three hundred seven million, six hundred sixteen thousand, six hundred thirty-one".