56554775255631 has 8 divisors (see below), whose sum is σ = 76468428514944. Its totient is φ = 37172152750040.

The previous prime is 56554775255579. The next prime is 56554775255651. The reversal of 56554775255631 is 13655257745565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56554775255631 - 2⁶ = 56554775255567 is a prime.

It is a super-2 number, since 2×56554775255631² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56554775255651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132757688181 + ... + 132757688606.

It is an arithmetic number, because the mean of its divisors is an integer number (9558553564368).

Almost surely, 2^{56554775255631} is an apocalyptic number.

56554775255631 is a deficient number, since it is larger than the sum of its proper divisors (19913653259313).

56554775255631 is a wasteful number, since it uses less digits than its factorization.

56554775255631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265515376861.

The product of its digits is 661500000, while the sum is 66.

The spelling of 56554775255631 in words is "fifty-six trillion, five hundred fifty-four billion, seven hundred seventy-five million, two hundred fifty-five thousand, six hundred thirty-one".