56233031 has 2 divisors, whose sum is σ = 56233032. Its totient is φ = 56233030.

The previous prime is 56232983. The next prime is 56233061. The reversal of 56233031 is 13033265.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56233031 is a prime.

It is a super-2 number, since 2×56233031² = 6324307550893922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56232988 and 56233006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56233061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28116515 + 28116516.

It is an arithmetic number, because the mean of its divisors is an integer number (28116516).

Almost surely, 2^56233031 is an apocalyptic number.

56233031 is a deficient number, since it is larger than the sum of its proper divisors (1).

56233031 is an equidigital number, since it uses as much as digits as its factorization.

56233031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 56233031 is about 7498.8686480028. The cubic root of 56233031 is about 383.1161834188.

Adding to 56233031 its reverse (13033265), we get a palindrome (69266296).

The spelling of 56233031 in words is "fifty-six million, two hundred thirty-three thousand, thirty-one".