55255152 has 80 divisors (see below), whose sum is σ = 147312000. Its totient is φ = 17839872.

The previous prime is 55255133. The next prime is 55255157. The reversal of 55255152 is 25155255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55255157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308599 + ... + 308777.

It is an arithmetic number, because the mean of its divisors is an integer number (1841400).

Almost surely, 2^55255152 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 55255152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73656000).

55255152 is an abundant number, since it is smaller than the sum of its proper divisors (92056848).

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

55255152 is a wasteful number, since it uses less digits than its factorization.

55255152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358 (or 352 counting only the distinct ones).

The product of its digits is 12500, while the sum is 30.

The square root of 55255152 is about 7433.3809266040. The cubic root of 55255152 is about 380.8824183703.

The spelling of 55255152 in words is "fifty-five million, two hundred fifty-five thousand, one hundred fifty-two".