57550222 has 8 divisors (see below), whose sum is σ = 87089616. Its totient is φ = 28520352.

The previous prime is 57550189. The next prime is 57550223. The reversal of 57550222 is 22205575.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57550223) 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, 127098 + ... + 127549.

It is an arithmetic number, because the mean of its divisors is an integer number (10886202).

Almost surely, 2^57550222 is an apocalyptic number.

57550222 is a deficient number, since it is larger than the sum of its proper divisors (29539394).

57550222 is a wasteful number, since it uses less digits than its factorization.

57550222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254762.

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 57550222 is about 7586.1862618842. The cubic root of 57550222 is about 386.0844714770.

Adding to 57550222 its reverse (22205575), we get a palindrome (79755797).

The spelling of 57550222 in words is "fifty-seven million, five hundred fifty thousand, two hundred twenty-two".