56331019 has 2 divisors, whose sum is σ = 56331020. Its totient is φ = 56331018.

The previous prime is 56330993. The next prime is 56331031. The reversal of 56331019 is 91013365.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56331019 - 2¹⁷ = 56199947 is a prime.

It is a super-2 number, since 2×56331019² = 6346367403156722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56311019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28165509 + 28165510.

It is an arithmetic number, because the mean of its divisors is an integer number (28165510).

Almost surely, 2^56331019 is an apocalyptic number.

56331019 is a deficient number, since it is larger than the sum of its proper divisors (1).

56331019 is an equidigital number, since it uses as much as digits as its factorization.

56331019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 56331019 is about 7505.3993231540. The cubic root of 56331019 is about 383.3385853513.

The spelling of 56331019 in words is "fifty-six million, three hundred thirty-one thousand, nineteen".