252100215 has 64 divisors (see below), whose sum is σ = 470937600. Its totient is φ = 127785600.

The previous prime is 252100213. The next prime is 252100223. The reversal of 252100215 is 512001252.

It is not a de Polignac number, because 252100215 - 2¹ = 252100213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252100213) 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, 246405 + ... + 247425.

It is an arithmetic number, because the mean of its divisors is an integer number (7358400).

Almost surely, 2^252100215 is an apocalyptic number.

252100215 is a deficient number, since it is larger than the sum of its proper divisors (218837385).

252100215 is a wasteful number, since it uses less digits than its factorization.

252100215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125 (or 1119 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 252100215 is about 15877.6640284394. The cubic root of 252100215 is about 631.7196780310.

Adding to 252100215 its reverse (512001252), we get a palindrome (764101467).

The spelling of 252100215 in words is "two hundred fifty-two million, one hundred thousand, two hundred fifteen".