53451603631 has 2 divisors, whose sum is σ = 53451603632. Its totient is φ = 53451603630.

The previous prime is 53451603613. The next prime is 53451603671. The reversal of 53451603631 is 13630615435.

It is a happy number.

Together with previous prime (53451603613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53451603631 - 2⁵ = 53451603599 is a prime.

It is a super-2 number, since 2×53451603631² (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 (53451603671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26725801815 + 26725801816.

It is an arithmetic number, because the mean of its divisors is an integer number (26725801816).

Almost surely, 2^53451603631 is an apocalyptic number.

53451603631 is a deficient number, since it is larger than the sum of its proper divisors (1).

53451603631 is an equidigital number, since it uses as much as digits as its factorization.

53451603631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97200, while the sum is 37.

The spelling of 53451603631 in words is "fifty-three billion, four hundred fifty-one million, six hundred three thousand, six hundred thirty-one".