252643215 has 64 divisors (see below), whose sum is σ = 468840960. Its totient is φ = 114992640.

The previous prime is 252643199. The next prime is 252643217. The reversal of 252643215 is 512346252.

It is not a de Polignac number, because 252643215 - 2⁴ = 252643199 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252643217) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 176332 + ... + 177758.

It is an arithmetic number, because the mean of its divisors is an integer number (7325640).

Almost surely, 2^252643215 is an apocalyptic number.

252643215 is a deficient number, since it is larger than the sum of its proper divisors (216197745).

252643215 is a wasteful number, since it uses less digits than its factorization.

252643215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512.

The product of its digits is 14400, while the sum is 30.

The square root of 252643215 is about 15894.7543233609. The cubic root of 252643215 is about 632.1729075786.

Adding to 252643215 its reverse (512346252), we get a palindrome (764989467).

The spelling of 252643215 in words is "two hundred fifty-two million, six hundred forty-three thousand, two hundred fifteen".