55650120 has 64 divisors (see below), whose sum is σ = 171037440. Its totient is φ = 14476800.

The previous prime is 55650073. The next prime is 55650143. The reversal of 55650120 is 2105655.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 736 + ... + 10575.

It is an arithmetic number, because the mean of its divisors is an integer number (2672460).

Almost surely, 2^55650120 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 55650120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85518720).

55650120 is an abundant number, since it is smaller than the sum of its proper divisors (115387320).

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

55650120 is a wasteful number, since it uses less digits than its factorization.

55650120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11366 (or 11362 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 55650120 is about 7459.9008036300. The cubic root of 55650120 is about 381.7877899949.

Adding to 55650120 its reverse (2105655), we get a palindrome (57755775).

The spelling of 55650120 in words is "fifty-five million, six hundred fifty thousand, one hundred twenty".