56385031 has 2 divisors, whose sum is σ = 56385032. Its totient is φ = 56385030.

The previous prime is 56385023. The next prime is 56385047. The reversal of 56385031 is 13058365.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56385031 - 2³ = 56385023 is a prime.

It is a super-2 number, since 2×56385031² = 6358543441741922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56384984 and 56385002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56385631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28192515 + 28192516.

It is an arithmetic number, because the mean of its divisors is an integer number (28192516).

Almost surely, 2^56385031 is an apocalyptic number.

56385031 is a deficient number, since it is larger than the sum of its proper divisors (1).

56385031 is an equidigital number, since it uses as much as digits as its factorization.

56385031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 56385031 is about 7508.9966706611. The cubic root of 56385031 is about 383.4610653517.

The spelling of 56385031 in words is "fifty-six million, three hundred eighty-five thousand, thirty-one".