55999422 has 24 divisors (see below), whose sum is σ = 127718760. Its totient is φ = 17683920.

The previous prime is 55999393. The next prime is 55999439. The reversal of 55999422 is 22499955.

55999422 is a `hidden beast` number, since 559 + 9 + 94 + 2 + 2 = 666.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81529 + ... + 82212.

It is an arithmetic number, because the mean of its divisors is an integer number (5321615).

Almost surely, 2^55999422 is an apocalyptic number.

55999422 is an abundant number, since it is smaller than the sum of its proper divisors (71719338).

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

55999422 is a wasteful number, since it uses less digits than its factorization.

55999422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163768 (or 163765 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The square root of 55999422 is about 7483.2761541988. The cubic root of 55999422 is about 382.5849202711.

The spelling of 55999422 in words is "fifty-five million, nine hundred ninety-nine thousand, four hundred twenty-two".