56776227172540 has 12 divisors (see below), whose sum is σ = 119230077062376. Its totient is φ = 22710490869008.

The previous prime is 56776227172519. The next prime is 56776227172607. The reversal of 56776227172540 is 4527172267765.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1419405679294 + ... + 1419405679333.

It is an arithmetic number, because the mean of its divisors is an integer number (9935839755198).

Almost surely, 2^{56776227172540} is an apocalyptic number.

It is an amenable number.

56776227172540 is an abundant number, since it is smaller than the sum of its proper divisors (62453849889836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56776227172540 is a wasteful number, since it uses less digits than its factorization.

56776227172540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2838811358636 (or 2838811358634 counting only the distinct ones).

The product of its (nonzero) digits is 69148800, while the sum is 61.

The spelling of 56776227172540 in words is "fifty-six trillion, seven hundred seventy-six billion, two hundred twenty-seven million, one hundred seventy-two thousand, five hundred forty".