57074949 has 20 divisors (see below), whose sum is σ = 85773996. Its totient is φ = 37820736.

The previous prime is 57074947. The next prime is 57074971. The reversal of 57074949 is 94947075.

57074949 is a `hidden beast` number, since 570 + 74 + 9 + 4 + 9 = 666.

57074949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 29354724 + 27720225 = 5418^2 + 5265^2 .

It is not a de Polignac number, because 57074949 - 2¹ = 57074947 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57074947) 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 in 19 ways as a sum of consecutive naturals, for example, 11977 + ... + 16049.

Almost surely, 2^57074949 is an apocalyptic number.

It is an amenable number.

57074949 is a deficient number, since it is larger than the sum of its proper divisors (28699047).

57074949 is a wasteful number, since it uses less digits than its factorization.

57074949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4258 (or 4249 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 57074949 is about 7554.7964234650. The cubic root of 57074949 is about 385.0187183793.

The spelling of 57074949 in words is "fifty-seven million, seventy-four thousand, nine hundred forty-nine".