57222266 has 4 divisors (see below), whose sum is σ = 85833402. Its totient is φ = 28611132.

The previous prime is 57222247. The next prime is 57222301. The reversal of 57222266 is 66222275.

57222266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 48011041 + 9211225 = 6929^2 + 3035^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14305565 + ... + 14305568.

Almost surely, 2^57222266 is an apocalyptic number.

57222266 is a deficient number, since it is larger than the sum of its proper divisors (28611136).

57222266 is a wasteful number, since it uses less digits than its factorization.

57222266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28611135.

The product of its digits is 20160, while the sum is 32.

The square root of 57222266 is about 7564.5400388920. The cubic root of 57222266 is about 385.3496929620.

Subtracting 57222266 from its reverse (66222275), we obtain a palindrome (9000009).

The spelling of 57222266 in words is "fifty-seven million, two hundred twenty-two thousand, two hundred sixty-six".