55775450788931 has 8 divisors (see below), whose sum is σ = 56098054049520. Its totient is φ = 55452849848352.

The previous prime is 55775450788903. The next prime is 55775450788961. The reversal of 55775450788931 is 13988705457755.

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 55775450788931 - 2¹⁰ = 55775450787907 is a prime.

It is a super-2 number, since 2×55775450788931² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55775450788961) 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, 79579340 + ... + 80277158.

It is an arithmetic number, because the mean of its divisors is an integer number (7012256756190).

Almost surely, 2^{55775450788931} is an apocalyptic number.

55775450788931 is a deficient number, since it is larger than the sum of its proper divisors (322603260589).

55775450788931 is a wasteful number, since it uses less digits than its factorization.

55775450788931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160005.

The product of its (nonzero) digits is 1481760000, while the sum is 74.

The spelling of 55775450788931 in words is "fifty-five trillion, seven hundred seventy-five billion, four hundred fifty million, seven hundred eighty-eight thousand, nine hundred thirty-one".