56453399 has 2 divisors, whose sum is σ = 56453400. Its totient is φ = 56453398.

The previous prime is 56453393. The next prime is 56453407. The reversal of 56453399 is 99335465.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56453399 - 2²⁰ = 55404823 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56453393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28226699 + 28226700.

It is an arithmetic number, because the mean of its divisors is an integer number (28226700).

Almost surely, 2^56453399 is an apocalyptic number.

56453399 is a deficient number, since it is larger than the sum of its proper divisors (1).

56453399 is an equidigital number, since it uses as much as digits as its factorization.

56453399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 437400, while the sum is 44.

The square root of 56453399 is about 7513.5476973265. The cubic root of 56453399 is about 383.6159875404.

The spelling of 56453399 in words is "fifty-six million, four hundred fifty-three thousand, three hundred ninety-nine".