252616066 has 4 divisors (see below), whose sum is σ = 378924102. Its totient is φ = 126308032.

The previous prime is 252616043. The next prime is 252616079. The reversal of 252616066 is 660616252.

252616066 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 194017041 + 58599025 = 13929^2 + 7655^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63154015 + ... + 63154018.

Almost surely, 2^252616066 is an apocalyptic number.

252616066 is a deficient number, since it is larger than the sum of its proper divisors (126308036).

252616066 is a wasteful number, since it uses less digits than its factorization.

252616066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126308035.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 252616066 is about 15893.9002765212. The cubic root of 252616066 is about 632.1502623672.

The spelling of 252616066 in words is "two hundred fifty-two million, six hundred sixteen thousand, sixty-six".