56553379 has 2 divisors, whose sum is σ = 56553380. Its totient is φ = 56553378.

The previous prime is 56553377. The next prime is 56553383. The reversal of 56553379 is 97335565.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56553379 - 2¹ = 56553377 is a prime.

Together with 56553377, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (56553377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28276689 + 28276690.

It is an arithmetic number, because the mean of its divisors is an integer number (28276690).

Almost surely, 2^56553379 is an apocalyptic number.

56553379 is a deficient number, since it is larger than the sum of its proper divisors (1).

56553379 is an equidigital number, since it uses as much as digits as its factorization.

56553379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 425250, while the sum is 43.

The square root of 56553379 is about 7520.1980692000. The cubic root of 56553379 is about 383.8423176199.

The spelling of 56553379 in words is "fifty-six million, five hundred fifty-three thousand, three hundred seventy-nine".