52585217 has 4 divisors (see below), whose sum is σ = 55352880. Its totient is φ = 49817556.

The previous prime is 52585213. The next prime is 52585219. The reversal of 52585217 is 71258525.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52585217 - 2² = 52585213 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52585213) 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, 1383803 + ... + 1383840.

It is an arithmetic number, because the mean of its divisors is an integer number (13838220).

Almost surely, 2^52585217 is an apocalyptic number.

It is an amenable number.

52585217 is a deficient number, since it is larger than the sum of its proper divisors (2767663).

52585217 is a wasteful number, since it uses less digits than its factorization.

52585217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2767662.

The product of its digits is 28000, while the sum is 35.

The square root of 52585217 is about 7251.5665204147. The cubic root of 52585217 is about 374.6461064263.

The spelling of 52585217 in words is "fifty-two million, five hundred eighty-five thousand, two hundred seventeen".