57222733 has 2 divisors, whose sum is σ = 57222734. Its totient is φ = 57222732.

The previous prime is 57222709. The next prime is 57222769. The reversal of 57222733 is 33722275.

57222733 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47375689 + 9847044 = 6883^2 + 3138^2 .

It is a cyclic number.

It is not a de Polignac number, because 57222733 - 2⁵ = 57222701 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57222695 and 57222704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57222533) 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 as a sum of consecutive naturals, namely, 28611366 + 28611367.

It is an arithmetic number, because the mean of its divisors is an integer number (28611367).

Almost surely, 2^57222733 is an apocalyptic number.

It is an amenable number.

57222733 is a deficient number, since it is larger than the sum of its proper divisors (1).

57222733 is an equidigital number, since it uses as much as digits as its factorization.

57222733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17640, while the sum is 31.

The square root of 57222733 is about 7564.5709065353. The cubic root of 57222733 is about 385.3507412591.

The spelling of 57222733 in words is "fifty-seven million, two hundred twenty-two thousand, seven hundred thirty-three".