52320617 has 4 divisors (see below), whose sum is σ = 52445316. Its totient is φ = 52195920.

The previous prime is 52320613. The next prime is 52320641. The reversal of 52320617 is 71602325.

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 5480281 + 46840336 = 2341^2 + 6844^2 .

It is a cyclic number.

It is not a de Polignac number, because 52320617 - 2² = 52320613 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52320613) 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, 61718 + ... + 62559.

It is an arithmetic number, because the mean of its divisors is an integer number (13111329).

Almost surely, 2^52320617 is an apocalyptic number.

It is an amenable number.

52320617 is a deficient number, since it is larger than the sum of its proper divisors (124699).

52320617 is a wasteful number, since it uses less digits than its factorization.

52320617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124698.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 52320617 is about 7233.2991781068. The cubic root of 52320617 is about 374.0166640177.

The spelling of 52320617 in words is "fifty-two million, three hundred twenty thousand, six hundred seventeen".