56407243 has 2 divisors, whose sum is σ = 56407244. Its totient is φ = 56407242.

The previous prime is 56407223. The next prime is 56407261. The reversal of 56407243 is 34270465.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56407243 - 2¹³ = 56399051 is a prime.

It is a super-2 number, since 2×56407243² = 6363554125722098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56407213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28203621 + 28203622.

It is an arithmetic number, because the mean of its divisors is an integer number (28203622).

Almost surely, 2^56407243 is an apocalyptic number.

56407243 is a deficient number, since it is larger than the sum of its proper divisors (1).

56407243 is an equidigital number, since it uses as much as digits as its factorization.

56407243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 56407243 is about 7510.4755508556. The cubic root of 56407243 is about 383.5114115685.

The spelling of 56407243 in words is "fifty-six million, four hundred seven thousand, two hundred forty-three".