55088544 has 120 divisors (see below), whose sum is σ = 169404480. Its totient is φ = 15673728.

The previous prime is 55088521. The next prime is 55088549. The reversal of 55088544 is 44588055.

It is a super-3 number, since 3×55088544³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55088549) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 230377 + ... + 230615.

It is an arithmetic number, because the mean of its divisors is an integer number (1411704).

Almost surely, 2^55088544 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 55088544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84702240).

55088544 is an abundant number, since it is smaller than the sum of its proper divisors (114315936).

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

55088544 is an equidigital number, since it uses as much as digits as its factorization.

55088544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 39.

The square root of 55088544 is about 7422.1657216745. The cubic root of 55088544 is about 380.4992146127.

The spelling of 55088544 in words is "fifty-five million, eighty-eight thousand, five hundred forty-four".