52956217 has 4 divisors (see below), whose sum is σ = 53853840. Its totient is φ = 52058596.

The previous prime is 52956199. The next prime is 52956221. The reversal of 52956217 is 71265925.

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 a de Polignac number, because none of the positive numbers 2^k-52956217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52956247) 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, 448723 + ... + 448840.

It is an arithmetic number, because the mean of its divisors is an integer number (13463460).

Almost surely, 2^52956217 is an apocalyptic number.

It is an amenable number.

52956217 is a deficient number, since it is larger than the sum of its proper divisors (897623).

52956217 is an equidigital number, since it uses as much as digits as its factorization.

52956217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897622.

The product of its digits is 37800, while the sum is 37.

The square root of 52956217 is about 7277.1022392158. The cubic root of 52956217 is about 375.5251120467.

The spelling of 52956217 in words is "fifty-two million, nine hundred fifty-six thousand, two hundred seventeen".