55010556 has 48 divisors (see below), whose sum is σ = 143959200. Its totient is φ = 18164736.

The previous prime is 55010531. The next prime is 55010563. The reversal of 55010556 is 65501055.

55010556 is a `hidden beast` number, since 550 + 105 + 5 + 6 = 666.

It is a super-2 number, since 2×55010556² = 6052322542858272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9436 + ... + 14108.

It is an arithmetic number, because the mean of its divisors is an integer number (2999150).

Almost surely, 2^55010556 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 55010556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71979600).

55010556 is an abundant number, since it is smaller than the sum of its proper divisors (88948644).

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

55010556 is a wasteful number, since it uses less digits than its factorization.

55010556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4795 (or 4787 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 55010556 is about 7416.9101383258. The cubic root of 55010556 is about 380.3195741963.

The spelling of 55010556 in words is "fifty-five million, ten thousand, five hundred fifty-six".