56901539 has 2 divisors, whose sum is σ = 56901540. Its totient is φ = 56901538.

The previous prime is 56901521. The next prime is 56901541. The reversal of 56901539 is 93510965.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56901539 - 2¹² = 56897443 is a prime.

Together with 56901541, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56901569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28450769 + 28450770.

It is an arithmetic number, because the mean of its divisors is an integer number (28450770).

Almost surely, 2^56901539 is an apocalyptic number.

56901539 is a deficient number, since it is larger than the sum of its proper divisors (1).

56901539 is an equidigital number, since it uses as much as digits as its factorization.

56901539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36450, while the sum is 38.

The square root of 56901539 is about 7543.3108778573. The cubic root of 56901539 is about 384.6283905171.

The spelling of 56901539 in words is "fifty-six million, nine hundred one thousand, five hundred thirty-nine".