55922886 has 40 divisors (see below), whose sum is σ = 126498240. Its totient is φ = 18464112.

The previous prime is 55922869. The next prime is 55922927. The reversal of 55922886 is 68822955.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16075 + ... + 19241.

It is an arithmetic number, because the mean of its divisors is an integer number (3162456).

Almost surely, 2^55922886 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55922886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63249120).

55922886 is an abundant number, since it is smaller than the sum of its proper divisors (70575354).

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

55922886 is a wasteful number, since it uses less digits than its factorization.

55922886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3290 (or 3281 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 55922886 is about 7478.1606027151. The cubic root of 55922886 is about 382.4105442477.

The spelling of 55922886 in words is "fifty-five million, nine hundred twenty-two thousand, eight hundred eighty-six".