55325120 has 56 divisors (see below), whose sum is σ = 137489184. Its totient is φ = 21165056.

The previous prime is 55325119. The next prime is 55325147. The reversal of 55325120 is 2152355.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3602 + ... + 11118.

It is an arithmetic number, because the mean of its divisors is an integer number (2455164).

Almost surely, 2^55325120 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 55325120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68744592).

55325120 is an abundant number, since it is smaller than the sum of its proper divisors (82164064).

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

55325120 is a wasteful number, since it uses less digits than its factorization.

55325120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7557 (or 7547 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 55325120 is about 7438.0857752516. The cubic root of 55325120 is about 381.0431173547.

Adding to 55325120 its reverse (2152355), we get a palindrome (57477475).

It can be divided in two parts, 5 and 5325120, that multiplied together give a square (26625600 = 5160²).

The spelling of 55325120 in words is "fifty-five million, three hundred twenty-five thousand, one hundred twenty".