56163631 has 12 divisors (see below), whose sum is σ = 62217072. Its totient is φ = 50428224.

The previous prime is 56163629. The next prime is 56163641. The reversal of 56163631 is 13636165.

It is not a de Polignac number, because 56163631 - 2¹ = 56163629 is a prime.

It is a super-2 number, since 2×56163631² = 6308706894208322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56163593 and 56163602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56163641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148000 + ... + 148378.

It is an arithmetic number, because the mean of its divisors is an integer number (5184756).

Almost surely, 2^56163631 is an apocalyptic number.

56163631 is a deficient number, since it is larger than the sum of its proper divisors (6053441).

56163631 is an equidigital number, since it uses as much as digits as its factorization.

56163631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798 (or 419 counting only the distinct ones).

The product of its digits is 9720, while the sum is 31.

The square root of 56163631 is about 7494.2398547151. The cubic root of 56163631 is about 382.9585109137.

Adding to 56163631 its reverse (13636165), we get a palindrome (69799796).

The spelling of 56163631 in words is "fifty-six million, one hundred sixty-three thousand, six hundred thirty-one".