66252115 has 8 divisors (see below), whose sum is σ = 82067328. Its totient is φ = 51291840.

The previous prime is 66252097. The next prime is 66252133. The reversal of 66252115 is 51125266.

It is an interprime number because it is at equal distance from previous prime (66252097) and next prime (66252133).

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

It is not a de Polignac number, because 66252115 - 2⁵ = 66252083 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 213562 + ... + 213871.

It is an arithmetic number, because the mean of its divisors is an integer number (10258416).

Almost surely, 2^66252115 is an apocalyptic number.

66252115 is a deficient number, since it is larger than the sum of its proper divisors (15815213).

66252115 is a wasteful number, since it uses less digits than its factorization.

66252115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427469.

The product of its digits is 3600, while the sum is 28.

The square root of 66252115 is about 8139.5402204301. The cubic root of 66252115 is about 404.6379225950.

The spelling of 66252115 in words is "sixty-six million, two hundred fifty-two thousand, one hundred fifteen".