55323744 has 144 divisors (see below), whose sum is σ = 178113600. Its totient is φ = 14950656.

The previous prime is 55323743. The next prime is 55323773. The reversal of 55323744 is 44732355.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55323743) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89067 + ... + 89685.

It is an arithmetic number, because the mean of its divisors is an integer number (1236900).

Almost surely, 2^55323744 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 55323744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89056800).

55323744 is an abundant number, since it is smaller than the sum of its proper divisors (122789856).

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

55323744 is a wasteful number, since it uses less digits than its factorization.

55323744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665 (or 650 counting only the distinct ones).

The product of its digits is 50400, while the sum is 33.

The square root of 55323744 is about 7437.9932777598. The cubic root of 55323744 is about 381.0399583335.

The spelling of 55323744 in words is "fifty-five million, three hundred twenty-three thousand, seven hundred forty-four".