55899731764 has 6 divisors (see below), whose sum is σ = 97824530594. Its totient is φ = 27949865880.

The previous prime is 55899731729. The next prime is 55899731773. The reversal of 55899731764 is 46713799855.

It can be written as a sum of positive squares in only one way, i.e., 36592629264 + 19307102500 = 191292^2 + 138950^2 .

It is a super-2 number, since 2×55899731764² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55899731696 and 55899731705.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6987466467 + ... + 6987466474.

Almost surely, 2^55899731764 is an apocalyptic number.

It is an amenable number.

55899731764 is a deficient number, since it is larger than the sum of its proper divisors (41924798830).

55899731764 is a wasteful number, since it uses less digits than its factorization.

55899731764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13974932945 (or 13974932943 counting only the distinct ones).

The product of its digits is 57153600, while the sum is 64.

The spelling of 55899731764 in words is "fifty-five billion, eight hundred ninety-nine million, seven hundred thirty-one thousand, seven hundred sixty-four".