55573344 has 96 divisors (see below), whose sum is σ = 163658880. Its totient is φ = 18345600.

The previous prime is 55573321. The next prime is 55573361. The reversal of 55573344 is 44337555.

55573344 is a `hidden beast` number, since 55 + 573 + 34 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 55573299 and 55573308.

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, 112939 + ... + 113429.

It is an arithmetic number, because the mean of its divisors is an integer number (1704780).

Almost surely, 2^55573344 is an apocalyptic number.

55573344 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55573344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81829440).

55573344 is an abundant number, since it is smaller than the sum of its proper divisors (108085536).

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

55573344 is a wasteful number, since it uses less digits than its factorization.

55573344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641 (or 627 counting only the distinct ones).

The product of its digits is 126000, while the sum is 36.

The square root of 55573344 is about 7454.7531146243. The cubic root of 55573344 is about 381.6121352100.

The spelling of 55573344 in words is "fifty-five million, five hundred seventy-three thousand, three hundred forty-four".