52017709 has 4 divisors (see below), whose sum is σ = 52035004. Its totient is φ = 52000416.

The previous prime is 52017703. The next prime is 52017733. The reversal of 52017709 is 90771025.

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 16281225 + 35736484 = 4035^2 + 5978^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52017709 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 (52017703) 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, 2832 + ... + 10585.

It is an arithmetic number, because the mean of its divisors is an integer number (13008751).

Almost surely, 2^52017709 is an apocalyptic number.

It is an amenable number.

52017709 is a deficient number, since it is larger than the sum of its proper divisors (17295).

52017709 is a wasteful number, since it uses less digits than its factorization.

52017709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17294.

The product of its (nonzero) digits is 4410, while the sum is 31.

The square root of 52017709 is about 7212.3303446251. The cubic root of 52017709 is about 373.2934820522.

The spelling of 52017709 in words is "fifty-two million, seventeen thousand, seven hundred nine".