52288213 has 4 divisors (see below), whose sum is σ = 52423020. Its totient is φ = 52153408.

The previous prime is 52288211. The next prime is 52288217. The reversal of 52288213 is 31288225.

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 30217009 + 22071204 = 5497^2 + 4698^2 .

It is a cyclic number.

It is not a de Polignac number, because 52288213 - 2¹ = 52288211 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 (52288211) 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, 66820 + ... + 67597.

It is an arithmetic number, because the mean of its divisors is an integer number (13105755).

Almost surely, 2^52288213 is an apocalyptic number.

It is an amenable number.

52288213 is a deficient number, since it is larger than the sum of its proper divisors (134807).

52288213 is a wasteful number, since it uses less digits than its factorization.

52288213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134806.

The product of its digits is 7680, while the sum is 31.

The square root of 52288213 is about 7231.0589127734. The cubic root of 52288213 is about 373.9394341762.

The spelling of 52288213 in words is "fifty-two million, two hundred eighty-eight thousand, two hundred thirteen".