55853316 has 72 divisors (see below), whose sum is σ = 146764800. Its totient is φ = 17896320.

The previous prime is 55853311. The next prime is 55853323. The reversal of 55853316 is 61335855.

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

It is not an unprimeable number, because it can be changed into a prime (55853311) 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, 116365 + ... + 116843.

It is an arithmetic number, because the mean of its divisors is an integer number (2038400).

Almost surely, 2^55853316 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 55853316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73382400).

55853316 is an abundant number, since it is smaller than the sum of its proper divisors (90911484).

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

55853316 is a wasteful number, since it uses less digits than its factorization.

55853316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609 (or 604 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 55853316 is about 7473.5076102189. The cubic root of 55853316 is about 382.2519011392.

It can be divided in two parts, 55853 and 316, that added together give a square (56169 = 237²).

The spelling of 55853316 in words is "fifty-five million, eight hundred fifty-three thousand, three hundred sixteen".