55440352 has 48 divisors (see below), whose sum is σ = 119750400. Its totient is φ = 25056640.

The previous prime is 55440337. The next prime is 55440391. The reversal of 55440352 is 25304455.

It is a self number, because there is not a number n which added to its sum of digits gives 55440352.

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, 83799 + ... + 84457.

It is an arithmetic number, because the mean of its divisors is an integer number (2494800).

Almost surely, 2^55440352 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 55440352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59875200).

55440352 is an abundant number, since it is smaller than the sum of its proper divisors (64310048).

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

55440352 is a wasteful number, since it uses less digits than its factorization.

55440352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919 (or 911 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 55440352 is about 7445.8278250306. The cubic root of 55440352 is about 381.3074813626.

It can be divided in two parts, 554403 and 52, that added together give a palindrome (554455).

The spelling of 55440352 in words is "fifty-five million, four hundred forty thousand, three hundred fifty-two".