56420574239 has 4 divisors (see below), whose sum is σ = 56423174640. Its totient is φ = 56417973840.

The previous prime is 56420574227. The next prime is 56420574257. The reversal of 56420574239 is 93247502465.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56420574239 - 2⁸ = 56420573983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56420574193 and 56420574202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56420574209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1267379 + ... + 1311140.

It is an arithmetic number, because the mean of its divisors is an integer number (14105793660).

Almost surely, 2^56420574239 is an apocalyptic number.

56420574239 is a deficient number, since it is larger than the sum of its proper divisors (2600401).

56420574239 is a wasteful number, since it uses less digits than its factorization.

56420574239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2600400.

The product of its (nonzero) digits is 1814400, while the sum is 47.

The spelling of 56420574239 in words is "fifty-six billion, four hundred twenty million, five hundred seventy-four thousand, two hundred thirty-nine".