252142505 has 8 divisors (see below), whose sum is σ = 302657472. Its totient is φ = 201656368.

The previous prime is 252142489. The next prime is 252142523. The reversal of 252142505 is 505241252.

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

It is a cyclic number.

It is not a de Polignac number, because 252142505 - 2⁴ = 252142489 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25724 + ... + 34146.

It is an arithmetic number, because the mean of its divisors is an integer number (37832184).

Almost surely, 2^252142505 is an apocalyptic number.

It is an amenable number.

252142505 is a deficient number, since it is larger than the sum of its proper divisors (50514967).

252142505 is an equidigital number, since it uses as much as digits as its factorization.

252142505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14415.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 252142505 is about 15878.9957176139. The cubic root of 252142505 is about 631.7549998725.

Adding to 252142505 its reverse (505241252), we get a palindrome (757383757).

The spelling of 252142505 in words is "two hundred fifty-two million, one hundred forty-two thousand, five hundred five".