55093680 has 60 divisors (see below), whose sum is σ = 185025360. Its totient is φ = 14691456.

The previous prime is 55093679. The next prime is 55093697. The reversal of 55093680 is 8639055.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37540 + ... + 38979.

It is an arithmetic number, because the mean of its divisors is an integer number (3083756).

Almost surely, 2^55093680 is an apocalyptic number.

It is an amenable number.

55093680 is an abundant number, since it is smaller than the sum of its proper divisors (129931680).

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

55093680 is a wasteful number, since it uses less digits than its factorization.

55093680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76538 (or 76529 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 55093680 is about 7422.5117042683. The cubic root of 55093680 is about 380.5110391113.

The spelling of 55093680 in words is "fifty-five million, ninety-three thousand, six hundred eighty".