57570222 has 8 divisors (see below), whose sum is σ = 115140456. Its totient is φ = 19190072.

The previous prime is 57570221. The next prime is 57570229. The reversal of 57570222 is 22207575.

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

57570222 is an admirable number.

It is a super-2 number, since 2×57570222² = 6628660922258568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 57570222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57570221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4797513 + ... + 4797524.

It is an arithmetic number, because the mean of its divisors is an integer number (14392557).

Almost surely, 2^57570222 is an apocalyptic number.

57570222 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.

57570222 is a wasteful number, since it uses less digits than its factorization.

57570222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9595042.

The product of its (nonzero) digits is 9800, while the sum is 30.

The square root of 57570222 is about 7587.5043327829. The cubic root of 57570222 is about 386.1291906507.

Adding to 57570222 its reverse (22207575), we get a palindrome (79777797).

The spelling of 57570222 in words is "fifty-seven million, five hundred seventy thousand, two hundred twenty-two".