252699365 has 4 divisors (see below), whose sum is σ = 303239244. Its totient is φ = 202159488.

The previous prime is 252699361. The next prime is 252699371. The reversal of 252699365 is 563996252.

It is a happy number.

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 37871716 + 214827649 = 6154^2 + 14657^2 .

It is a cyclic number.

It is not a de Polignac number, because 252699365 - 2² = 252699361 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252699361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25269932 + ... + 25269941.

It is an arithmetic number, because the mean of its divisors is an integer number (75809811).

Almost surely, 2^252699365 is an apocalyptic number.

It is an amenable number.

252699365 is a deficient number, since it is larger than the sum of its proper divisors (50539879).

252699365 is an equidigital number, since it uses as much as digits as its factorization.

252699365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50539878.

The product of its digits is 874800, while the sum is 47.

The square root of 252699365 is about 15896.5205312358. The cubic root of 252699365 is about 632.2197376236.

The spelling of 252699365 in words is "two hundred fifty-two million, six hundred ninety-nine thousand, three hundred sixty-five".