56551767758 has 64 divisors (see below), whose sum is σ = 92826917568. Its totient is φ = 25737953280.

The previous prime is 56551767757. The next prime is 56551767781. The reversal of 56551767758 is 85776715565.

It is a self number, because there is not a number n which added to its sum of digits gives 56551767758.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56551767757) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46467566 + ... + 46468782.

It is an arithmetic number, because the mean of its divisors is an integer number (1450420587).

Almost surely, 2^56551767758 is an apocalyptic number.

56551767758 is a deficient number, since it is larger than the sum of its proper divisors (36275149810).

56551767758 is a wasteful number, since it uses less digits than its factorization.

56551767758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1637.

The product of its digits is 61740000, while the sum is 62.

The spelling of 56551767758 in words is "fifty-six billion, five hundred fifty-one million, seven hundred sixty-seven thousand, seven hundred fifty-eight".