55285087037808 has 40 divisors (see below), whose sum is σ = 142820625287808. Its totient is φ = 18428256912832.

The previous prime is 55285087037777. The next prime is 55285087037813. The reversal of 55285087037808 is 80873078058255.

It is a super-2 number, since 2×55285087037808² (a number of 28 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 in 7 ways as a sum of consecutive naturals, for example, 5420035 + ... + 11829917.

Almost surely, 2^{55285087037808} is an apocalyptic number.

It is an amenable number.

55285087037808 is an abundant number, since it is smaller than the sum of its proper divisors (87535538250000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55285087037808 is a wasteful number, since it uses less digits than its factorization.

55285087037808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6589581 (or 6589575 counting only the distinct ones).

The product of its (nonzero) digits is 150528000, while the sum is 66.

The spelling of 55285087037808 in words is "fifty-five trillion, two hundred eighty-five billion, eighty-seven million, thirty-seven thousand, eight hundred eight".