56357999 has 2 divisors, whose sum is σ = 56358000. Its totient is φ = 56357998.

The previous prime is 56357963. The next prime is 56358011. The reversal of 56357999 is 99975365.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56357999 - 2¹² = 56353903 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56357999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56357929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28178999 + 28179000.

It is an arithmetic number, because the mean of its divisors is an integer number (28179000).

Almost surely, 2^56357999 is an apocalyptic number.

56357999 is a deficient number, since it is larger than the sum of its proper divisors (1).

56357999 is an equidigital number, since it uses as much as digits as its factorization.

56357999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2296350, while the sum is 53.

The square root of 56357999 is about 7507.1964807110. The cubic root of 56357999 is about 383.3997761745.

The spelling of 56357999 in words is "fifty-six million, three hundred fifty-seven thousand, nine hundred ninety-nine".