56997265648 has 40 divisors (see below), whose sum is σ = 110683951488. Its totient is φ = 28433748672.

The previous prime is 56997265639. The next prime is 56997265679. The reversal of 56997265648 is 84656279965.

It is a super-3 number, since 3×56997265648³ (a number of 33 digits) contains 333 as substring.

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, 21242515 + ... + 21245197.

Almost surely, 2^56997265648 is an apocalyptic number.

It is an amenable number.

56997265648 is a deficient number, since it is larger than the sum of its proper divisors (53686685840).

56997265648 is a wasteful number, since it uses less digits than its factorization.

56997265648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5221 (or 5215 counting only the distinct ones).

The product of its digits is 195955200, while the sum is 67.

The spelling of 56997265648 in words is "fifty-six billion, nine hundred ninety-seven million, two hundred sixty-five thousand, six hundred forty-eight".