57994281 has 12 divisors (see below), whose sum is σ = 86034052. Its totient is φ = 37617696.

The previous prime is 57994267. The next prime is 57994297. The reversal of 57994281 is 18249975.

It can be written as a sum of positive squares in 2 ways, for example, as 32592681 + 25401600 = 5709^2 + 5040^2 .

It is not a de Polignac number, because 57994281 - 2⁵ = 57994249 is a prime.

It is a super-2 number, since 2×57994281² = 6726673257413922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57994231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86746 + ... + 87411.

Almost surely, 2^57994281 is an apocalyptic number.

It is an amenable number.

57994281 is a deficient number, since it is larger than the sum of its proper divisors (28039771).

57994281 is a wasteful number, since it uses less digits than its factorization.

57994281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174200 (or 174197 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 57994281 is about 7615.3976258630. The cubic root of 57994281 is about 387.0749409184.

The spelling of 57994281 in words is "fifty-seven million, nine hundred ninety-four thousand, two hundred eighty-one".