252541441 has 4 divisors (see below), whose sum is σ = 254236500. Its totient is φ = 250846384.

The previous prime is 252541439. The next prime is 252541447. The reversal of 252541441 is 144145252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17808400 + 234733041 = 4220^2 + 15321^2 .

It is a cyclic number.

It is not a de Polignac number, because 252541441 - 2¹ = 252541439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252541447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 847306 + ... + 847603.

It is an arithmetic number, because the mean of its divisors is an integer number (63559125).

Almost surely, 2^252541441 is an apocalyptic number.

It is an amenable number.

252541441 is a deficient number, since it is larger than the sum of its proper divisors (1695059).

252541441 is a wasteful number, since it uses less digits than its factorization.

252541441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1695058.

The product of its digits is 6400, while the sum is 28.

The square root of 252541441 is about 15891.5525043968. The cubic root of 252541441 is about 632.0880086606.

Adding to 252541441 its reverse (144145252), we get a palindrome (396686693).

The spelling of 252541441 in words is "two hundred fifty-two million, five hundred forty-one thousand, four hundred forty-one".