55056620 has 24 divisors (see below), whose sum is σ = 119349888. Its totient is φ = 21312000.

The previous prime is 55056619. The next prime is 55056653. The reversal of 55056620 is 2665055.

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 7 ways as a sum of consecutive naturals, for example, 43781 + ... + 45020.

It is an arithmetic number, because the mean of its divisors is an integer number (4972912).

Almost surely, 2^55056620 is an apocalyptic number.

It is an amenable number.

55056620 is an abundant number, since it is smaller than the sum of its proper divisors (64293268).

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

55056620 is a wasteful number, since it uses less digits than its factorization.

55056620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88841 (or 88839 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 55056620 is about 7420.0148247830. The cubic root of 55056620 is about 380.4257002107.

The spelling of 55056620 in words is "fifty-five million, fifty-six thousand, six hundred twenty".