55632120 has 64 divisors (see below), whose sum is σ = 168804000. Its totient is φ = 14665728.

The previous prime is 55632107. The next prime is 55632131. The reversal of 55632120 is 2123655.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 8076 + ... + 13284.

Almost surely, 2^55632120 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 55632120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84402000).

55632120 is an abundant number, since it is smaller than the sum of its proper divisors (113171880).

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

55632120 is a wasteful number, since it uses less digits than its factorization.

55632120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5312 (or 5308 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 55632120 is about 7458.6942556992. The cubic root of 55632120 is about 381.7466225408.

Adding to 55632120 its reverse (2123655), we get a palindrome (57755775).

The spelling of 55632120 in words is "fifty-five million, six hundred thirty-two thousand, one hundred twenty".