252543111 has 16 divisors (see below), whose sum is σ = 343415520. Its totient is φ = 165035520.

The previous prime is 252543101. The next prime is 252543113. The reversal of 252543111 is 111345252.

It is a happy number.

It is not a de Polignac number, because 252543111 - 2⁶ = 252543047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252543113) 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, 55075 + ... + 59483.

It is an arithmetic number, because the mean of its divisors is an integer number (21463470).

Almost surely, 2^252543111 is an apocalyptic number.

252543111 is a deficient number, since it is larger than the sum of its proper divisors (90872409).

252543111 is a wasteful number, since it uses less digits than its factorization.

252543111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4786.

The product of its digits is 1200, while the sum is 24.

The square root of 252543111 is about 15891.6050479491. The cubic root of 252543111 is about 632.0894019431.

Adding to 252543111 its reverse (111345252), we get a palindrome (363888363).

The spelling of 252543111 in words is "two hundred fifty-two million, five hundred forty-three thousand, one hundred eleven".