55249152 has 144 divisors (see below), whose sum is σ = 172677120. Its totient is φ = 15353856.

The previous prime is 55249123. The next prime is 55249171. The reversal of 55249152 is 25194255.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

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, 231049 + ... + 231287.

Almost surely, 2^55249152 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 55249152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86338560).

55249152 is an abundant number, since it is smaller than the sum of its proper divisors (117427968).

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

55249152 is a wasteful number, since it uses less digits than its factorization.

55249152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 294 counting only the distinct ones).

The product of its digits is 18000, while the sum is 33.

The square root of 55249152 is about 7432.9773307874. The cubic root of 55249152 is about 380.8686315580.

The spelling of 55249152 in words is "fifty-five million, two hundred forty-nine thousand, one hundred fifty-two".