56163031 has 8 divisors (see below), whose sum is σ = 60494720. Its totient is φ = 51968952.

The previous prime is 56162999. The next prime is 56163049. The reversal of 56163031 is 13036165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56163031 - 2⁵ = 56162999 is a prime.

It is a super-2 number, since 2×56163031² = 6308572102213922, 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 = 56162987 and 56163005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56161031) 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 7 ways as a sum of consecutive naturals, for example, 33555 + ... + 35188.

It is an arithmetic number, because the mean of its divisors is an integer number (7561840).

Almost surely, 2^56163031 is an apocalyptic number.

56163031 is a deficient number, since it is larger than the sum of its proper divisors (4331689).

56163031 is a wasteful number, since it uses less digits than its factorization.

56163031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68805.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 56163031 is about 7494.1998238638. The cubic root of 56163031 is about 382.9571471846.

Adding to 56163031 its reverse (13036165), we get a palindrome (69199196).

The spelling of 56163031 in words is "fifty-six million, one hundred sixty-three thousand, thirty-one".