55075660 has 12 divisors (see below), whose sum is σ = 115658928. Its totient is φ = 22030256.

The previous prime is 55075649. The next prime is 55075663. The reversal of 55075660 is 6657055.

It is not an unprimeable number, because it can be changed into a prime (55075663) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1376872 + ... + 1376911.

It is an arithmetic number, because the mean of its divisors is an integer number (9638244).

Almost surely, 2^55075660 is an apocalyptic number.

It is an amenable number.

55075660 is an abundant number, since it is smaller than the sum of its proper divisors (60583268).

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

55075660 is a wasteful number, since it uses less digits than its factorization.

55075660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2753792 (or 2753790 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 55075660 is about 7421.2977301817. The cubic root of 55075660 is about 380.4695488313.

The spelling of 55075660 in words is "fifty-five million, seventy-five thousand, six hundred sixty".