52221371 has 8 divisors (see below), whose sum is σ = 53697600. Its totient is φ = 50760448.

The previous prime is 52221349. The next prime is 52221397. The reversal of 52221371 is 17312225.

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 a de Polignac number, because none of the positive numbers 2^k-52221371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52221571) 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, 3275 + ... + 10731.

It is an arithmetic number, because the mean of its divisors is an integer number (6712200).

Almost surely, 2^52221371 is an apocalyptic number.

52221371 is a deficient number, since it is larger than the sum of its proper divisors (1476229).

52221371 is a wasteful number, since it uses less digits than its factorization.

52221371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7653.

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

The square root of 52221371 is about 7226.4355667231. The cubic root of 52221371 is about 373.7800259245.

Adding to 52221371 its reverse (17312225), we get a palindrome (69533596).

The spelling of 52221371 in words is "fifty-two million, two hundred twenty-one thousand, three hundred seventy-one".