56537904398 has 16 divisors (see below), whose sum is σ = 88895678256. Its totient is φ = 26938080960.

The previous prime is 56537904347. The next prime is 56537904403. The reversal of 56537904398 is 89340973565.

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, 8013761 + ... + 8020812.

It is an arithmetic number, because the mean of its divisors is an integer number (5555979891).

Almost surely, 2^56537904398 is an apocalyptic number.

56537904398 is a deficient number, since it is larger than the sum of its proper divisors (32357773858).

56537904398 is a wasteful number, since it uses less digits than its factorization.

56537904398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16034659.

The product of its (nonzero) digits is 24494400, while the sum is 59.

The spelling of 56537904398 in words is "fifty-six billion, five hundred thirty-seven million, nine hundred four thousand, three hundred ninety-eight".