55522206 has 16 divisors (see below), whose sum is σ = 123382800. Its totient is φ = 18507384.

The previous prime is 55522189. The next prime is 55522223. The reversal of 55522206 is 60222555.

It is an interprime number because it is at equal distance from previous prime (55522189) and next prime (55522223).

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

It is a self number, because there is not a number n which added to its sum of digits gives 55522206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 514041 + ... + 514148.

It is an arithmetic number, because the mean of its divisors is an integer number (7711425).

Almost surely, 2^55522206 is an apocalyptic number.

55522206 is an abundant number, since it is smaller than the sum of its proper divisors (67860594).

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

55522206 is a wasteful number, since it uses less digits than its factorization.

55522206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028200 (or 1028194 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 55522206 is about 7451.3224329645. The cubic root of 55522206 is about 381.4950474792.

The spelling of 55522206 in words is "fifty-five million, five hundred twenty-two thousand, two hundred six".