55370784 has 144 divisors (see below), whose sum is σ = 172368000. Its totient is φ = 15515136.

The previous prime is 55370779. The next prime is 55370797. The reversal of 55370784 is 48707355.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 371542 + ... + 371690.

It is an arithmetic number, because the mean of its divisors is an integer number (1197000).

Almost surely, 2^55370784 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 55370784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86184000).

55370784 is an abundant number, since it is smaller than the sum of its proper divisors (116997216).

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

55370784 is a wasteful number, since it uses less digits than its factorization.

55370784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 39.

The square root of 55370784 is about 7441.1547490964. The cubic root of 55370784 is about 381.1479230797.

The spelling of 55370784 in words is "fifty-five million, three hundred seventy thousand, seven hundred eighty-four".