55773984 has 48 divisors (see below), whose sum is σ = 167323968. Its totient is φ = 15935232.

The previous prime is 55773973. The next prime is 55773997. The reversal of 55773984 is 48937755.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×55773984² = 6221474582464512, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 40827 + ... + 42170.

It is an arithmetic number, because the mean of its divisors is an integer number (3485916).

Almost surely, 2^55773984 is an apocalyptic number.

It is an amenable number.

55773984 is an abundant number, since it is smaller than the sum of its proper divisors (111549984).

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

55773984 is a wasteful number, since it uses less digits than its factorization.

55773984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83017 (or 83009 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 48.

The square root of 55773984 is about 7468.1981762672. The cubic root of 55773984 is about 382.0708365296.

The spelling of 55773984 in words is "fifty-five million, seven hundred seventy-three thousand, nine hundred eighty-four".