55325130 has 64 divisors (see below), whose sum is σ = 153204480. Its totient is φ = 12524544.

The previous prime is 55325119. The next prime is 55325147. The reversal of 55325130 is 3152355.

It is a self number, because there is not a number n which added to its sum of digits gives 55325130.

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, 21682 + ... + 24098.

It is an arithmetic number, because the mean of its divisors is an integer number (2393820).

Almost surely, 2^55325130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55325130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76602240).

55325130 is an abundant number, since it is smaller than the sum of its proper divisors (97879350).

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

55325130 is a wasteful number, since it uses less digits than its factorization.

55325130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2543.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 55325130 is about 7438.0864474675. The cubic root of 55325130 is about 381.0431403125.

Adding to 55325130 its reverse (3152355), we get a palindrome (58477485).

It can be divided in two parts, 55325 and 130, that added together give a palindrome (55455).

The spelling of 55325130 in words is "fifty-five million, three hundred twenty-five thousand, one hundred thirty".