56066431 has 2 divisors, whose sum is σ = 56066432. Its totient is φ = 56066430.

The previous prime is 56066411. The next prime is 56066443. The reversal of 56066431 is 13466065.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56066431 - 2⁷ = 56066303 is a prime.

It is a super-2 number, since 2×56066431² = 6286889370155522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56066393 and 56066402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56066401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28033215 + 28033216.

It is an arithmetic number, because the mean of its divisors is an integer number (28033216).

Almost surely, 2^56066431 is an apocalyptic number.

56066431 is a deficient number, since it is larger than the sum of its proper divisors (1).

56066431 is an equidigital number, since it uses as much as digits as its factorization.

56066431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 56066431 is about 7487.7520658740. The cubic root of 56066431 is about 382.7374600247.

The spelling of 56066431 in words is "fifty-six million, sixty-six thousand, four hundred thirty-one".