55788544 has 88 divisors (see below), whose sum is σ = 131139008. Its totient is φ = 23224320.

The previous prime is 55788539. The next prime is 55788553. The reversal of 55788544 is 44588755.

It is a super-2 number, since 2×55788544² = 6224723283279872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55788494 and 55788503.

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, 308134 + ... + 308314.

It is an arithmetic number, because the mean of its divisors is an integer number (1490216).

Almost surely, 2^55788544 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 55788544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65569504).

55788544 is an abundant number, since it is smaller than the sum of its proper divisors (75350464).

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

55788544 is a wasteful number, since it uses less digits than its factorization.

55788544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251 (or 233 counting only the distinct ones).

The product of its digits is 896000, while the sum is 46.

The square root of 55788544 is about 7469.1729127126. The cubic root of 55788544 is about 382.1040806276.

The spelling of 55788544 in words is "fifty-five million, seven hundred eighty-eight thousand, five hundred forty-four".