56318839 has 2 divisors, whose sum is σ = 56318840. Its totient is φ = 56318838.

The previous prime is 56318837. The next prime is 56318887. The reversal of 56318839 is 93881365.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56318839 - 2¹ = 56318837 is a prime.

Together with 56318837, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 56318795 and 56318804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56318837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28159419 + 28159420.

It is an arithmetic number, because the mean of its divisors is an integer number (28159420).

Almost surely, 2^56318839 is an apocalyptic number.

56318839 is a deficient number, since it is larger than the sum of its proper divisors (1).

56318839 is an equidigital number, since it uses as much as digits as its factorization.

56318839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 43.

The square root of 56318839 is about 7504.5878634339. The cubic root of 56318839 is about 383.3109546272.

The spelling of 56318839 in words is "fifty-six million, three hundred eighteen thousand, eight hundred thirty-nine".