55675220 has 24 divisors (see below), whose sum is σ = 117307008. Its totient is φ = 22196000.

The previous prime is 55675181. The next prime is 55675223. The reversal of 55675220 is 2257655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55675223) 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 7 ways as a sum of consecutive naturals, for example, 1745 + ... + 10695.

It is an arithmetic number, because the mean of its divisors is an integer number (4887792).

Almost surely, 2^55675220 is an apocalyptic number.

It is an amenable number.

55675220 is an abundant number, since it is smaller than the sum of its proper divisors (61631788).

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

55675220 is a wasteful number, since it uses less digits than its factorization.

55675220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9271 (or 9269 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 55675220 is about 7461.5829419769. The cubic root of 55675220 is about 381.8451809053.

The spelling of 55675220 in words is "fifty-five million, six hundred seventy-five thousand, two hundred twenty".