557222 has 4 divisors (see below), whose sum is σ = 835836. Its totient is φ = 278610.

The previous prime is 557201. The next prime is 557261. The reversal of 557222 is 222755.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139304 + ... + 139307.

It is an arithmetic number, because the mean of its divisors is an integer number (208959).

2⁵⁵⁷²²² is an apocalyptic number.

557222 is a deficient number, since it is larger than the sum of its proper divisors (278614).

557222 is a wasteful number, since it uses less digits than its factorization.

557222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278613.

The product of its digits is 1400, while the sum is 23.

The square root of 557222 is about 746.4730403705. The cubic root of 557222 is about 82.2891832041.

Adding to 557222 its reverse (222755), we get a palindrome (779977).

The spelling of 557222 in words is "five hundred fifty-seven thousand, two hundred twenty-two".