252720970 has 8 divisors (see below), whose sum is σ = 454897764. Its totient is φ = 101088384.

The previous prime is 252720961. The next prime is 252720977. The reversal of 252720970 is 79027252.

It can be written as a sum of positive squares in 2 ways, for example, as 251190801 + 1530169 = 15849^2 + 1237^2 .

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

It is not an unprimeable number, because it can be changed into a prime (252720977) 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, 12636039 + ... + 12636058.

Almost surely, 2^252720970 is an apocalyptic number.

252720970 is a deficient number, since it is larger than the sum of its proper divisors (202176794).

252720970 is a wasteful number, since it uses less digits than its factorization.

252720970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25272104.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 252720970 is about 15897.2000679365. The cubic root of 252720970 is about 632.2377547091.

The spelling of 252720970 in words is "two hundred fifty-two million, seven hundred twenty thousand, nine hundred seventy".