252785836 has 6 divisors (see below), whose sum is σ = 442375220. Its totient is φ = 126392916.

The previous prime is 252785831. The next prime is 252785839. The reversal of 252785836 is 638587252.

It is a happy number.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (252785831) 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 as a sum of consecutive naturals, namely, 31598226 + ... + 31598233.

Almost surely, 2^252785836 is an apocalyptic number.

It is an amenable number.

252785836 is a deficient number, since it is larger than the sum of its proper divisors (189589384).

252785836 is a wasteful number, since it uses less digits than its factorization.

252785836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63196463 (or 63196461 counting only the distinct ones).

The product of its digits is 806400, while the sum is 46.

The square root of 252785836 is about 15899.2401076278. The cubic root of 252785836 is about 632.2918423272.

The spelling of 252785836 in words is "two hundred fifty-two million, seven hundred eighty-five thousand, eight hundred thirty-six".