252115443 has 32 divisors (see below), whose sum is σ = 392071680. Its totient is φ = 159809760.

The previous prime is 252115417. The next prime is 252115453. The reversal of 252115443 is 344511252.

252115443 is a `hidden beast` number, since 2 + 5 + 211 + 5 + 443 = 666.

It is not a de Polignac number, because 252115443 - 2¹⁰ = 252114419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (252115453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111280 + ... + 113522.

It is an arithmetic number, because the mean of its divisors is an integer number (12252240).

Almost surely, 2^252115443 is an apocalyptic number.

252115443 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

252115443 is a deficient number, since it is larger than the sum of its proper divisors (139956237).

252115443 is a wasteful number, since it uses less digits than its factorization.

252115443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2456 (or 2450 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 252115443 is about 15878.1435627721. The cubic root of 252115443 is about 631.7323973558.

Adding to 252115443 its reverse (344511252), we get a palindrome (596626695).

The spelling of 252115443 in words is "two hundred fifty-two million, one hundred fifteen thousand, four hundred forty-three".