57022817 has 4 divisors (see below), whose sum is σ = 57060036. Its totient is φ = 56985600.

The previous prime is 57022813. The next prime is 57022831. The reversal of 57022817 is 71822075.

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 44568976 + 12453841 = 6676^2 + 3529^2 .

It is a cyclic number.

It is not a de Polignac number, because 57022817 - 2² = 57022813 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57022813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16208 + ... + 19409.

It is an arithmetic number, because the mean of its divisors is an integer number (14265009).

Almost surely, 2^57022817 is an apocalyptic number.

It is an amenable number.

57022817 is a deficient number, since it is larger than the sum of its proper divisors (37219).

57022817 is a wasteful number, since it uses less digits than its factorization.

57022817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37218.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 57022817 is about 7551.3453768186. The cubic root of 57022817 is about 384.9014578856.

The spelling of 57022817 in words is "fifty-seven million, twenty-two thousand, eight hundred seventeen".