55057422 has 16 divisors (see below), whose sum is σ = 125845632. Its totient is φ = 15730680.

The previous prime is 55057417. The next prime is 55057433. The reversal of 55057422 is 22475055.

It is a self number, because there is not a number n which added to its sum of digits gives 55057422.

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, 655404 + ... + 655487.

It is an arithmetic number, because the mean of its divisors is an integer number (7865352).

Almost surely, 2^55057422 is an apocalyptic number.

55057422 is an abundant number, since it is smaller than the sum of its proper divisors (70788210).

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

55057422 is a wasteful number, since it uses less digits than its factorization.

55057422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310903.

The product of its (nonzero) digits is 14000, while the sum is 30.

The square root of 55057422 is about 7420.0688676049. The cubic root of 55057422 is about 380.4275473996.

The spelling of 55057422 in words is "fifty-five million, fifty-seven thousand, four hundred twenty-two".