252816601 has 4 divisors (see below), whose sum is σ = 254100132. Its totient is φ = 251533072.

The previous prime is 252816583. The next prime is 252816611. The reversal of 252816601 is 106618252.

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 189200025 + 63616576 = 13755^2 + 7976^2 .

It is a cyclic number.

It is not a de Polignac number, because 252816601 - 2⁵ = 252816569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252816611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 641470 + ... + 641863.

It is an arithmetic number, because the mean of its divisors is an integer number (63525033).

Almost surely, 2^252816601 is an apocalyptic number.

It is an amenable number.

252816601 is a deficient number, since it is larger than the sum of its proper divisors (1283531).

252816601 is a wasteful number, since it uses less digits than its factorization.

252816601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283530.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 252816601 is about 15900.2075772614. The cubic root of 252816601 is about 632.3174920627.

The spelling of 252816601 in words is "two hundred fifty-two million, eight hundred sixteen thousand, six hundred one".