253163336631 has 4 divisors (see below), whose sum is σ = 337551115512. Its totient is φ = 168775557752.

The previous prime is 253163336627. The next prime is 253163336681. The reversal of 253163336631 is 136633361352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 253163336631 - 2² = 253163336627 is a prime.

It is a super-2 number, since 2×253163336631² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253163336611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42193889436 + ... + 42193889441.

It is an arithmetic number, because the mean of its divisors is an integer number (84387778878).

Almost surely, 2^253163336631 is an apocalyptic number.

253163336631 is a deficient number, since it is larger than the sum of its proper divisors (84387778881).

253163336631 is an equidigital number, since it uses as much as digits as its factorization.

253163336631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84387778880.

The product of its digits is 524880, while the sum is 42.

Adding to 253163336631 its reverse (136633361352), we get a palindrome (389796697983).

The spelling of 253163336631 in words is "two hundred fifty-three billion, one hundred sixty-three million, three hundred thirty-six thousand, six hundred thirty-one".