55550152 has 128 divisors (see below), whose sum is σ = 136857600. Its totient is φ = 20579328.

The previous prime is 55550147. The next prime is 55550161. The reversal of 55550152 is 25105555.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 55550152.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 941499 + ... + 941557.

It is an arithmetic number, because the mean of its divisors is an integer number (1069200).

Almost surely, 2^55550152 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 55550152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68428800).

55550152 is an abundant number, since it is smaller than the sum of its proper divisors (81307448).

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

55550152 is a wasteful number, since it uses less digits than its factorization.

55550152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 6250, while the sum is 28.

The square root of 55550152 is about 7453.1974346585. The cubic root of 55550152 is about 381.5590427293.

The spelling of 55550152 in words is "fifty-five million, five hundred fifty thousand, one hundred fifty-two".