252001217 has 16 divisors (see below), whose sum is σ = 287925120. Its totient is φ = 218495232.

The previous prime is 252001207. The next prime is 252001229. The reversal of 252001217 is 712100252.

252001217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 252001217 - 2⁶ = 252001153 is a prime.

It is a super-2 number, since 2×252001217² = 127009226738962178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252001207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162548 + ... + 164090.

It is an arithmetic number, because the mean of its divisors is an integer number (17995320).

Almost surely, 2^252001217 is an apocalyptic number.

It is an amenable number.

252001217 is a deficient number, since it is larger than the sum of its proper divisors (35923903).

252001217 is a wasteful number, since it uses less digits than its factorization.

252001217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2312.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 252001217 is about 15874.5461982382. The cubic root of 252001217 is about 631.6369765642.

Adding to 252001217 its reverse (712100252), we get a palindrome (964101469).

The spelling of 252001217 in words is "two hundred fifty-two million, one thousand, two hundred seventeen".