252116306 has 8 divisors (see below), whose sum is σ = 407264844. Its totient is φ = 116361360.

The previous prime is 252116299. The next prime is 252116311. The reversal of 252116306 is 603611252.

It can be written as a sum of positive squares in 2 ways, for example, as 239971081 + 12145225 = 15491^2 + 3485^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 9696781 = 252116306 / (2 + 5 + 2 + 1 + 1 + 6 + 3 + 0 + 6).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4848365 + ... + 4848416.

Almost surely, 2^252116306 is an apocalyptic number.

252116306 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

252116306 is a deficient number, since it is larger than the sum of its proper divisors (155148538).

252116306 is a wasteful number, since it uses less digits than its factorization.

252116306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9696796.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 252116306 is about 15878.1707384698. The cubic root of 252116306 is about 631.7331181691.

Adding to 252116306 its reverse (603611252), we get a palindrome (855727558).

The spelling of 252116306 in words is "two hundred fifty-two million, one hundred sixteen thousand, three hundred six".