57222986 has 8 divisors (see below), whose sum is σ = 90883620. Its totient is φ = 26928448.

The previous prime is 57222983. The next prime is 57223039. The reversal of 57222986 is 68922275.

57222986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 50623225 + 6599761 = 7115^2 + 2569^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57222983) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 841481 + ... + 841548.

Almost surely, 2^57222986 is an apocalyptic number.

57222986 is a deficient number, since it is larger than the sum of its proper divisors (33660634).

57222986 is a wasteful number, since it uses less digits than its factorization.

57222986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683048.

The product of its digits is 120960, while the sum is 41.

The square root of 57222986 is about 7564.5876292102. The cubic root of 57222986 is about 385.3513091779.

The spelling of 57222986 in words is "fifty-seven million, two hundred twenty-two thousand, nine hundred eighty-six".