56840390492 has 24 divisors (see below), whose sum is σ = 99949021200. Its totient is φ = 28283628800.

The previous prime is 56840390461. The next prime is 56840390531. The reversal of 56840390492 is 29409304865.

It is a self number, because there is not a number n which added to its sum of digits gives 56840390492.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2532134 + ... + 2554482.

It is an arithmetic number, because the mean of its divisors is an integer number (4164542550).

Almost surely, 2^56840390492 is an apocalyptic number.

It is an amenable number.

56840390492 is a deficient number, since it is larger than the sum of its proper divisors (43108630708).

56840390492 is a wasteful number, since it uses less digits than its factorization.

56840390492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25381 (or 25379 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 50.

The spelling of 56840390492 in words is "fifty-six billion, eight hundred forty million, three hundred ninety thousand, four hundred ninety-two".