57555222 has 8 divisors (see below), whose sum is σ = 115110456. Its totient is φ = 19185072.

The previous prime is 57555209. The next prime is 57555229. The reversal of 57555222 is 22255575.

It is a sphenic number, since it is the product of 3 distinct primes.

57555222 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57555229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4796263 + ... + 4796274.

It is an arithmetic number, because the mean of its divisors is an integer number (14388807).

Almost surely, 2^57555222 is an apocalyptic number.

57555222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

57555222 is a wasteful number, since it uses less digits than its factorization.

57555222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9592542.

The product of its digits is 35000, while the sum is 33.

The square root of 57555222 is about 7586.5158010776. The cubic root of 57555222 is about 386.0956522416.

The spelling of 57555222 in words is "fifty-seven million, five hundred fifty-five thousand, two hundred twenty-two".