57222767 has 4 divisors (see below), whose sum is σ = 65397456. Its totient is φ = 49048080.

The previous prime is 57222733. The next prime is 57222769. The reversal of 57222767 is 76722275.

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

It is a cyclic number.

It is not a de Polignac number, because 57222767 - 2²⁰ = 56174191 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57222767.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57222769) 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, 4087334 + ... + 4087347.

It is an arithmetic number, because the mean of its divisors is an integer number (16349364).

Almost surely, 2^57222767 is an apocalyptic number.

57222767 is a deficient number, since it is larger than the sum of its proper divisors (8174689).

57222767 is an equidigital number, since it uses as much as digits as its factorization.

57222767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8174688.

The product of its digits is 82320, while the sum is 38.

The square root of 57222767 is about 7564.5731538534. The cubic root of 57222767 is about 385.3508175803.

The spelling of 57222767 in words is "fifty-seven million, two hundred twenty-two thousand, seven hundred sixty-seven".