57228373 has 2 divisors, whose sum is σ = 57228374. Its totient is φ = 57228372.

The previous prime is 57228371. The next prime is 57228377. The reversal of 57228373 is 37382275.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42536484 + 14691889 = 6522^2 + 3833^2 .

It is a cyclic number.

It is not a de Polignac number, because 57228373 - 2¹ = 57228371 is a prime.

Together with 57228371, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57228371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28614186 + 28614187.

It is an arithmetic number, because the mean of its divisors is an integer number (28614187).

Almost surely, 2^57228373 is an apocalyptic number.

It is an amenable number.

57228373 is a deficient number, since it is larger than the sum of its proper divisors (1).

57228373 is an equidigital number, since it uses as much as digits as its factorization.

57228373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 37.

The square root of 57228373 is about 7564.9436878274. The cubic root of 57228373 is about 385.3634011856.

The spelling of 57228373 in words is "fifty-seven million, two hundred twenty-eight thousand, three hundred seventy-three".