55775409364 has 6 divisors (see below), whose sum is σ = 97606966394. Its totient is φ = 27887704680.

The previous prime is 55775409337. The next prime is 55775409379. The reversal of 55775409364 is 46390457755.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 37425997764 + 18349411600 = 193458^2 + 135460^2 .

It is a super-2 number, since 2×55775409364² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6971926167 + ... + 6971926174.

Almost surely, 2^55775409364 is an apocalyptic number.

It is an amenable number.

55775409364 is a deficient number, since it is larger than the sum of its proper divisors (41831557030).

55775409364 is a wasteful number, since it uses less digits than its factorization.

55775409364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13943852345 (or 13943852343 counting only the distinct ones).

The product of its (nonzero) digits is 15876000, while the sum is 55.

The spelling of 55775409364 in words is "fifty-five billion, seven hundred seventy-five million, four hundred nine thousand, three hundred sixty-four".