55773264 has 80 divisors (see below), whose sum is σ = 150883200. Its totient is φ = 17730048.

The previous prime is 55773253. The next prime is 55773283. The reversal of 55773264 is 46237755.

It is a super-2 number, since 2×55773264² = 6221313954427392, which 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 15 ways as a sum of consecutive naturals, for example, 143182 + ... + 143570.

It is an arithmetic number, because the mean of its divisors is an integer number (1886040).

Almost surely, 2^55773264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55773264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75441600).

55773264 is an abundant number, since it is smaller than the sum of its proper divisors (95109936).

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

55773264 is a wasteful number, since it uses less digits than its factorization.

55773264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532 (or 526 counting only the distinct ones).

The product of its digits is 176400, while the sum is 39.

The square root of 55773264 is about 7468.1499717132. The cubic root of 55773264 is about 382.0691924406.

The spelling of 55773264 in words is "fifty-five million, seven hundred seventy-three thousand, two hundred sixty-four".