53081163 has 24 divisors (see below), whose sum is σ = 80838576. Its totient is φ = 34797600.

The previous prime is 53081159. The next prime is 53081167. The reversal of 53081163 is 36118035.

It is an interprime number because it is at equal distance from previous prime (53081159) and next prime (53081167).

It is not a de Polignac number, because 53081163 - 2² = 53081159 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (53081167) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13033 + ... + 16613.

It is an arithmetic number, because the mean of its divisors is an integer number (3368274).

Almost surely, 2^53081163 is an apocalyptic number.

53081163 is a deficient number, since it is larger than the sum of its proper divisors (27757413).

53081163 is an equidigital number, since it uses as much as digits as its factorization.

53081163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3657 (or 3645 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 53081163 is about 7285.6820545506. The cubic root of 53081163 is about 375.8202206602.

Adding to 53081163 its reverse (36118035), we get a palindrome (89199198).

The spelling of 53081163 in words is "fifty-three million, eighty-one thousand, one hundred sixty-three".