56008031 has 2 divisors, whose sum is σ = 56008032. Its totient is φ = 56008030.

The previous prime is 56008003. The next prime is 56008061. The reversal of 56008031 is 13080065.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56008031 is a prime.

It is a super-2 number, since 2×56008031² = 6273799072993922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 56007988 and 56008006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56008061) 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 as a sum of consecutive naturals, namely, 28004015 + 28004016.

It is an arithmetic number, because the mean of its divisors is an integer number (28004016).

Almost surely, 2^56008031 is an apocalyptic number.

56008031 is a deficient number, since it is larger than the sum of its proper divisors (1).

56008031 is an equidigital number, since it uses as much as digits as its factorization.

56008031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 56008031 is about 7483.8513480694. The cubic root of 56008031 is about 382.6045246688.

Adding to 56008031 its reverse (13080065), we get a palindrome (69088096).

It can be divided in two parts, 5600 and 8031, that added together give a palindrome (13631).

The spelling of 56008031 in words is "fifty-six million, eight thousand, thirty-one".