57945197 has 4 divisors (see below), whose sum is σ = 61353756. Its totient is φ = 54536640.

The previous prime is 57945179. The next prime is 57945221. The reversal of 57945197 is 79154975.

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 17355556 + 40589641 = 4166^2 + 6371^2 .

It is a cyclic number.

It is not a de Polignac number, because 57945197 - 2⁶ = 57945133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57945397) 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, 1704254 + ... + 1704287.

It is an arithmetic number, because the mean of its divisors is an integer number (15338439).

Almost surely, 2^57945197 is an apocalyptic number.

It is an amenable number.

57945197 is a deficient number, since it is larger than the sum of its proper divisors (3408559).

57945197 is a wasteful number, since it uses less digits than its factorization.

57945197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3408558.

The product of its digits is 396900, while the sum is 47.

The square root of 57945197 is about 7612.1742623248. The cubic root of 57945197 is about 386.9657086020.

The spelling of 57945197 in words is "fifty-seven million, nine hundred forty-five thousand, one hundred ninety-seven".