56385971 has 2 divisors, whose sum is σ = 56385972. Its totient is φ = 56385970.

The previous prime is 56385961. The next prime is 56386007. The reversal of 56385971 is 17958365.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56385971 - 2⁶ = 56385907 is a prime.

It is a super-2 number, since 2×56385971² = 6358755451225682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56385911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28192985 + 28192986.

It is an arithmetic number, because the mean of its divisors is an integer number (28192986).

Almost surely, 2^56385971 is an apocalyptic number.

56385971 is a deficient number, since it is larger than the sum of its proper divisors (1).

56385971 is an equidigital number, since it uses as much as digits as its factorization.

56385971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 226800, while the sum is 44.

The square root of 56385971 is about 7509.0592619848. The cubic root of 56385971 is about 383.4631962447.

The spelling of 56385971 in words is "fifty-six million, three hundred eighty-five thousand, nine hundred seventy-one".