52213217 has 8 divisors (see below), whose sum is σ = 59885376. Its totient is φ = 44594352.

The previous prime is 52213199. The next prime is 52213237. The reversal of 52213217 is 71231225.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52213217 - 2²⁴ = 35436001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52213192 and 52213201.

It is not an unprimeable number, because it can be changed into a prime (52213237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11198 + ... + 15159.

It is an arithmetic number, because the mean of its divisors is an integer number (7485672).

Almost surely, 2^52213217 is an apocalyptic number.

It is an amenable number.

52213217 is a deficient number, since it is larger than the sum of its proper divisors (7672159).

52213217 is a wasteful number, since it uses less digits than its factorization.

52213217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26647.

The product of its digits is 840, while the sum is 23.

The square root of 52213217 is about 7225.8713661399. The cubic root of 52213217 is about 373.7605705373.

The spelling of 52213217 in words is "fifty-two million, two hundred thirteen thousand, two hundred seventeen".