55522266 has 8 divisors (see below), whose sum is σ = 111044544. Its totient is φ = 18507420.

The previous prime is 55522249. The next prime is 55522273. The reversal of 55522266 is 66222555.

It is a sphenic number, since it is the product of 3 distinct primes.

55522266 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4626850 + ... + 4626861.

It is an arithmetic number, because the mean of its divisors is an integer number (13880568).

Almost surely, 2^55522266 is an apocalyptic number.

55522266 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55522266 is a wasteful number, since it uses less digits than its factorization.

55522266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9253716.

The product of its digits is 36000, while the sum is 33.

The square root of 55522266 is about 7451.3264590944. The cubic root of 55522266 is about 381.4951848998.

The spelling of 55522266 in words is "fifty-five million, five hundred twenty-two thousand, two hundred sixty-six".