52213251 has 8 divisors (see below), whose sum is σ = 70003024. Its totient is φ = 34616160.

The previous prime is 52213237. The next prime is 52213261. The reversal of 52213251 is 15231225.

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

It is not a de Polignac number, because 52213251 - 2⁷ = 52213123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52213261) 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, 47536 + ... + 48621.

It is an arithmetic number, because the mean of its divisors is an integer number (8750378).

Almost surely, 2^52213251 is an apocalyptic number.

52213251 is a deficient number, since it is larger than the sum of its proper divisors (17789773).

52213251 is a wasteful number, since it uses less digits than its factorization.

52213251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96341.

The product of its digits is 600, while the sum is 21.

The square root of 52213251 is about 7225.8737187969. The cubic root of 52213251 is about 373.7606516653.

Adding to 52213251 its reverse (15231225), we get a palindrome (67444476).

The spelling of 52213251 in words is "fifty-two million, two hundred thirteen thousand, two hundred fifty-one".