56584399 has 2 divisors, whose sum is σ = 56584400. Its totient is φ = 56584398.

The previous prime is 56584349. The next prime is 56584403. The reversal of 56584399 is 99348565.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56584399 - 2¹⁹ = 56060111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56584349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28292199 + 28292200.

It is an arithmetic number, because the mean of its divisors is an integer number (28292200).

Almost surely, 2^56584399 is an apocalyptic number.

56584399 is a deficient number, since it is larger than the sum of its proper divisors (1).

56584399 is an equidigital number, since it uses as much as digits as its factorization.

56584399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1166400, while the sum is 49.

The square root of 56584399 is about 7522.2602321377. The cubic root of 56584399 is about 383.9124850298.

The spelling of 56584399 in words is "fifty-six million, five hundred eighty-four thousand, three hundred ninety-nine".