57292285 has 4 divisors (see below), whose sum is σ = 68750748. Its totient is φ = 45833824.

The previous prime is 57292273. The next prime is 57292289. The reversal of 57292285 is 58229275.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17690436 + 39601849 = 4206^2 + 6293^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57292285 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57292289) 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 3 ways as a sum of consecutive naturals, for example, 5729224 + ... + 5729233.

It is an arithmetic number, because the mean of its divisors is an integer number (17187687).

Almost surely, 2^57292285 is an apocalyptic number.

It is an amenable number.

57292285 is a deficient number, since it is larger than the sum of its proper divisors (11458463).

57292285 is a wasteful number, since it uses less digits than its factorization.

57292285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11458462.

The product of its digits is 100800, while the sum is 40.

The square root of 57292285 is about 7569.1667308892. The cubic root of 57292285 is about 385.5068043118.

The spelling of 57292285 in words is "fifty-seven million, two hundred ninety-two thousand, two hundred eighty-five".