252201647 has 16 divisors (see below), whose sum is σ = 287649792. Its totient is φ = 219711360.

The previous prime is 252201637. The next prime is 252201667. The reversal of 252201647 is 746102252.

It is a happy number.

252201647 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 a de Polignac number, because none of the positive numbers 2^k-252201647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252201637) 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, 1718 + ... + 22524.

It is an arithmetic number, because the mean of its divisors is an integer number (17978112).

Almost surely, 2^252201647 is an apocalyptic number.

252201647 is a deficient number, since it is larger than the sum of its proper divisors (35448145).

252201647 is a wasteful number, since it uses less digits than its factorization.

252201647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20878.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 252201647 is about 15880.8578798502. The cubic root of 252201647 is about 631.8043903726.

Adding to 252201647 its reverse (746102252), we get a palindrome (998303899).

The spelling of 252201647 in words is "two hundred fifty-two million, two hundred one thousand, six hundred forty-seven".