55772384 has 24 divisors (see below), whose sum is σ = 111041280. Its totient is φ = 27571456.

The previous prime is 55772369. The next prime is 55772389. The reversal of 55772384 is 48327755.

It is a super-2 number, since 2×55772384² = 6221117634086912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55772389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6944 + ... + 12639.

It is an arithmetic number, because the mean of its divisors is an integer number (4626720).

Almost surely, 2^55772384 is an apocalyptic number.

It is an amenable number.

55772384 is a deficient number, since it is larger than the sum of its proper divisors (55268896).

55772384 is a wasteful number, since it uses less digits than its factorization.

55772384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19682 (or 19674 counting only the distinct ones).

The product of its digits is 235200, while the sum is 41.

The square root of 55772384 is about 7468.0910546136. The cubic root of 55772384 is about 382.0671829792.

The spelling of 55772384 in words is "fifty-five million, seven hundred seventy-two thousand, three hundred eighty-four".