55303257808 has 20 divisors (see below), whose sum is σ = 108210956868. Its totient is φ = 27377849600.

The previous prime is 55303257769. The next prime is 55303257817. The reversal of 55303257808 is 80875230355.

It can be written as a sum of positive squares in 2 ways, for example, as 29546859664 + 25756398144 = 171892^2 + 160488^2 .

It is a super-2 number, since 2×55303257808² (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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17109541 + ... + 17112772.

Almost surely, 2^55303257808 is an apocalyptic number.

It is an amenable number.

55303257808 is a deficient number, since it is larger than the sum of its proper divisors (52907699060).

55303257808 is a wasteful number, since it uses less digits than its factorization.

55303257808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34222422 (or 34222416 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 46.

The spelling of 55303257808 in words is "fifty-five billion, three hundred three million, two hundred fifty-seven thousand, eight hundred eight".