55255002 has 64 divisors (see below), whose sum is σ = 128217600. Its totient is φ = 15698880.

The previous prime is 55255001. The next prime is 55255007. The reversal of 55255002 is 20055255.

It is not an unprimeable number, because it can be changed into a prime (55255001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 174148 + ... + 174464.

It is an arithmetic number, because the mean of its divisors is an integer number (2003400).

Almost surely, 2^55255002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55255002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64108800).

55255002 is an abundant number, since it is smaller than the sum of its proper divisors (72962598).

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

55255002 is a wasteful number, since it uses less digits than its factorization.

55255002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491.

The product of its (nonzero) digits is 2500, while the sum is 24.

The square root of 55255002 is about 7433.3708369756. The cubic root of 55255002 is about 380.8820737121.

The spelling of 55255002 in words is "fifty-five million, two hundred fifty-five thousand, two".