55577375572 has 6 divisors (see below), whose sum is σ = 97260407258. Its totient is φ = 27788687784.

The previous prime is 55577375569. The next prime is 55577375599. The reversal of 55577375572 is 27557377555.

It can be written as a sum of positive squares in only one way, i.e., 53696939076 + 1880436496 = 231726^2 + 43364^2 .

It is a super-2 number, since 2×55577375572² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6947171943 + ... + 6947171950.

Almost surely, 2^55577375572 is an apocalyptic number.

It is an amenable number.

55577375572 is a deficient number, since it is larger than the sum of its proper divisors (41683031686).

55577375572 is a wasteful number, since it uses less digits than its factorization.

55577375572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13894343897 (or 13894343895 counting only the distinct ones).

The product of its digits is 45018750, while the sum is 58.

The spelling of 55577375572 in words is "fifty-five billion, five hundred seventy-seven million, three hundred seventy-five thousand, five hundred seventy-two".