55537235885 has 16 divisors (see below), whose sum is σ = 70244573760. Its totient is φ = 42036013440.

The previous prime is 55537235843. The next prime is 55537235911. The reversal of 55537235885 is 58853273555.

It is not a de Polignac number, because 55537235885 - 2²⁰ = 55536187309 is a prime.

It is a super-2 number, since 2×55537235885² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55537235885.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311807 + ... + 456396.

It is an arithmetic number, because the mean of its divisors is an integer number (4390285860).

Almost surely, 2^55537235885 is an apocalyptic number.

It is an amenable number.

55537235885 is a deficient number, since it is larger than the sum of its proper divisors (14707337875).

55537235885 is a wasteful number, since it uses less digits than its factorization.

55537235885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768988.

The product of its digits is 25200000, while the sum is 56.

The spelling of 55537235885 in words is "fifty-five billion, five hundred thirty-seven million, two hundred thirty-five thousand, eight hundred eighty-five".