252695545 has 4 divisors (see below), whose sum is σ = 303234660. Its totient is φ = 202156432.

The previous prime is 252695537. The next prime is 252695551. The reversal of 252695545 is 545596252.

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 131056704 + 121638841 = 11448^2 + 11029^2 .

It is a cyclic number.

It is not a de Polignac number, because 252695545 - 2³ = 252695537 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25269550 + ... + 25269559.

It is an arithmetic number, because the mean of its divisors is an integer number (75808665).

Almost surely, 2^252695545 is an apocalyptic number.

It is an amenable number.

252695545 is a deficient number, since it is larger than the sum of its proper divisors (50539115).

252695545 is an equidigital number, since it uses as much as digits as its factorization.

252695545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50539114.

The product of its digits is 540000, while the sum is 43.

The square root of 252695545 is about 15896.4003787021. The cubic root of 252695545 is about 632.2165518993.

The spelling of 252695545 in words is "two hundred fifty-two million, six hundred ninety-five thousand, five hundred forty-five".