252110018 has 4 divisors (see below), whose sum is σ = 378165030. Its totient is φ = 126055008.

The previous prime is 252109997. The next prime is 252110041. The reversal of 252110018 is 810011252.

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 only one way, i.e., 137898049 + 114211969 = 11743^2 + 10687^2 .

It is a super-2 number, since 2×252110018² = 127118922351920648, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 63027503 + ... + 63027506.

Almost surely, 2^252110018 is an apocalyptic number.

252110018 is a deficient number, since it is larger than the sum of its proper divisors (126055012).

252110018 is a wasteful number, since it uses less digits than its factorization.

252110018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126055011.

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 252110018 is about 15877.9727295395. The cubic root of 252110018 is about 631.7278661342.

The spelling of 252110018 in words is "two hundred fifty-two million, one hundred ten thousand, eighteen".