252989735 has 4 divisors (see below), whose sum is σ = 303587688. Its totient is φ = 202391784.

The previous prime is 252989717. The next prime is 252989741. The reversal of 252989735 is 537989252.

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

It is a cyclic number.

It is not a de Polignac number, because 252989735 - 2¹² = 252985639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 25298969 + ... + 25298978.

It is an arithmetic number, because the mean of its divisors is an integer number (75896922).

Almost surely, 2^252989735 is an apocalyptic number.

252989735 is a deficient number, since it is larger than the sum of its proper divisors (50597953).

252989735 is an equidigital number, since it uses as much as digits as its factorization.

252989735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50597952.

The product of its digits is 1360800, while the sum is 50.

The square root of 252989735 is about 15905.6510398034. The cubic root of 252989735 is about 632.4618004603.

The spelling of 252989735 in words is "two hundred fifty-two million, nine hundred eighty-nine thousand, seven hundred thirty-five".