57212822 has 16 divisors (see below), whose sum is σ = 89722080. Its totient is φ = 27310272.

The previous prime is 57212821. The next prime is 57212839. The reversal of 57212822 is 22821275.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57212821) 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 7 ways as a sum of consecutive naturals, for example, 34754 + ... + 36362.

It is an arithmetic number, because the mean of its divisors is an integer number (5607630).

Almost surely, 2^57212822 is an apocalyptic number.

57212822 is a deficient number, since it is larger than the sum of its proper divisors (32509258).

57212822 is a wasteful number, since it uses less digits than its factorization.

57212822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2407.

The product of its digits is 4480, while the sum is 29.

The square root of 57212822 is about 7563.9157848300. The cubic root of 57212822 is about 385.3284923410.

The spelling of 57212822 in words is "fifty-seven million, two hundred twelve thousand, eight hundred twenty-two".