56802439 has 2 divisors, whose sum is σ = 56802440. Its totient is φ = 56802438.

The previous prime is 56802391. The next prime is 56802467. The reversal of 56802439 is 93420865.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56802439 - 2⁷ = 56802311 is a prime.

56802439 is a modest number, since divided by 2439 gives 568 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 56802398 and 56802407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56802469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28401219 + 28401220.

It is an arithmetic number, because the mean of its divisors is an integer number (28401220).

Almost surely, 2^56802439 is an apocalyptic number.

56802439 is a deficient number, since it is larger than the sum of its proper divisors (1).

56802439 is an equidigital number, since it uses as much as digits as its factorization.

56802439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 56802439 is about 7536.7392816788. The cubic root of 56802439 is about 384.4049705320.

The spelling of 56802439 in words is "fifty-six million, eight hundred two thousand, four hundred thirty-nine".