55075120 has 40 divisors (see below), whose sum is σ = 128362320. Its totient is φ = 21976320.

The previous prime is 55075099. The next prime is 55075123. The reversal of 55075120 is 2157055.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (55075123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56235 + ... + 57205.

It is an arithmetic number, because the mean of its divisors is an integer number (3209058).

Almost surely, 2^55075120 is an apocalyptic number.

It is an amenable number.

55075120 is an abundant number, since it is smaller than the sum of its proper divisors (73287200).

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

55075120 is a wasteful number, since it uses less digits than its factorization.

55075120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1693 (or 1687 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 25.

The square root of 55075120 is about 7421.2613483154. The cubic root of 55075120 is about 380.4683053647.

The spelling of 55075120 in words is "fifty-five million, seventy-five thousand, one hundred twenty".