252217032 has 64 divisors (see below), whose sum is σ = 671302080. Its totient is φ = 78692352.

The previous prime is 252217019. The next prime is 252217033. The reversal of 252217032 is 230712252.

It is a happy number.

It is a super-2 number, since 2×252217032² = 127226862461778048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 252216993 and 252217011.

It is not an unprimeable number, because it can be changed into a prime (252217033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77143 + ... + 80345.

It is an arithmetic number, because the mean of its divisors is an integer number (10489095).

Almost surely, 2^252217032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252217032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335651040).

252217032 is an abundant number, since it is smaller than the sum of its proper divisors (419085048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252217032 is a wasteful number, since it uses less digits than its factorization.

252217032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3422 (or 3418 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 252217032 is about 15881.3422606529. The cubic root of 252217032 is about 631.8172373848.

Adding to 252217032 its reverse (230712252), we get a palindrome (482929284).

The spelling of 252217032 in words is "two hundred fifty-two million, two hundred seventeen thousand, thirty-two".