55422822 has 96 divisors (see below), whose sum is σ = 147202272. Its totient is φ = 13741056.

The previous prime is 55422817. The next prime is 55422883. The reversal of 55422822 is 22822455.

It is a self number, because there is not a number n which added to its sum of digits gives 55422822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64548 + ... + 65400.

It is an arithmetic number, because the mean of its divisors is an integer number (1533357).

Almost surely, 2^55422822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55422822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73601136).

55422822 is an abundant number, since it is smaller than the sum of its proper divisors (91779450).

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

55422822 is a wasteful number, since it uses less digits than its factorization.

55422822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902 (or 895 counting only the distinct ones).

The product of its digits is 12800, while the sum is 30.

The square root of 55422822 is about 7444.6505626524. The cubic root of 55422822 is about 381.2672878661.

The spelling of 55422822 in words is "fifty-five million, four hundred twenty-two thousand, eight hundred twenty-two".