56338505391 has 8 divisors (see below), whose sum is σ = 85849151104. Its totient is φ = 32193431640.

The previous prime is 56338505383. The next prime is 56338505411. The reversal of 56338505391 is 19350583365.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56338505391 - 2³ = 56338505383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56338505391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56338505191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1341392965 + ... + 1341393006.

It is an arithmetic number, because the mean of its divisors is an integer number (10731143888).

Almost surely, 2^56338505391 is an apocalyptic number.

56338505391 is a deficient number, since it is larger than the sum of its proper divisors (29510645713).

56338505391 is a wasteful number, since it uses less digits than its factorization.

56338505391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2682785981.

The product of its (nonzero) digits is 1458000, while the sum is 48.

The spelling of 56338505391 in words is "fifty-six billion, three hundred thirty-eight million, five hundred five thousand, three hundred ninety-one".