252443545 has 8 divisors (see below), whose sum is σ = 303034824. Its totient is φ = 201886464.

The previous prime is 252443531. The next prime is 252443551. The reversal of 252443545 is 545344252.

It can be written as a sum of positive squares in 4 ways, for example, as 33965584 + 218477961 = 5828^2 + 14781^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 252443545 - 2¹⁵ = 252410777 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 252443545.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12337 + ... + 25633.

It is an arithmetic number, because the mean of its divisors is an integer number (37879353).

Almost surely, 2^252443545 is an apocalyptic number.

It is an amenable number.

252443545 is a deficient number, since it is larger than the sum of its proper divisors (50591279).

252443545 is a wasteful number, since it uses less digits than its factorization.

252443545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17099.

The product of its digits is 96000, while the sum is 34.

The square root of 252443545 is about 15888.4720788375. The cubic root of 252443545 is about 632.0063232089.

Adding to 252443545 its reverse (545344252), we get a palindrome (797787797).

The spelling of 252443545 in words is "two hundred fifty-two million, four hundred forty-three thousand, five hundred forty-five".