52170057 has 6 divisors (see below), whose sum is σ = 75356762. Its totient is φ = 34780032.

The previous prime is 52170031. The next prime is 52170061. The reversal of 52170057 is 75007125.

It can be written as a sum of positive squares in only one way, i.e., 34327881 + 17842176 = 5859^2 + 4224^2 .

It is a de Polignac number, because none of the positive numbers 2^k-52170057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52170057.

It is not an unprimeable number, because it can be changed into a prime (52170007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2898328 + ... + 2898345.

Almost surely, 2^52170057 is an apocalyptic number.

It is an amenable number.

52170057 is a deficient number, since it is larger than the sum of its proper divisors (23186705).

52170057 is a wasteful number, since it uses less digits than its factorization.

52170057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5796679 (or 5796676 counting only the distinct ones).

The product of its (nonzero) digits is 2450, while the sum is 27.

The square root of 52170057 is about 7222.8842576910. The cubic root of 52170057 is about 373.6575573284.

The spelling of 52170057 in words is "fifty-two million, one hundred seventy thousand, fifty-seven".