55375255280 has 40 divisors (see below), whose sum is σ = 135523654800. Its totient is φ = 20984306688.

The previous prime is 55375255259. The next prime is 55375255301. The reversal of 55375255280 is 8255257355.

It is an interprime number because it is at equal distance from previous prime (55375255259) and next prime (55375255301).

It is a tau number, because it is divible by the number of its divisors (40).

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, 18214025 + ... + 18217064.

It is an arithmetic number, because the mean of its divisors is an integer number (3388091370).

Almost surely, 2^55375255280 is an apocalyptic number.

It is an amenable number.

55375255280 is an abundant number, since it is smaller than the sum of its proper divisors (80148399520).

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

55375255280 is a wasteful number, since it uses less digits than its factorization.

55375255280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36431121 (or 36431115 counting only the distinct ones).

The product of its (nonzero) digits is 2100000, while the sum is 47.

The spelling of 55375255280 in words is "fifty-five billion, three hundred seventy-five million, two hundred fifty-five thousand, two hundred eighty".