55022660 has 48 divisors (see below), whose sum is σ = 144063360. Its totient is φ = 17149440.

The previous prime is 55022621. The next prime is 55022677. The reversal of 55022660 is 6622055.

It is a happy number.

It is a super-2 number, since 2×55022660² = 6054986226951200, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 16325 + ... + 19404.

It is an arithmetic number, because the mean of its divisors is an integer number (3001320).

Almost surely, 2^55022660 is an apocalyptic number.

It is an amenable number.

55022660 is an abundant number, since it is smaller than the sum of its proper divisors (89040700).

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

55022660 is a wasteful number, since it uses less digits than its factorization.

55022660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35756 (or 35754 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 55022660 is about 7417.7260666595. The cubic root of 55022660 is about 380.3474661190.

The spelling of 55022660 in words is "fifty-five million, twenty-two thousand, six hundred sixty".