66254275 has 12 divisors (see below), whose sum is σ = 82427512. Its totient is φ = 52827840.

The previous prime is 66254261. The next prime is 66254291. The reversal of 66254275 is 57245266.

It is not a de Polignac number, because 66254275 - 2¹¹ = 66252227 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

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 11 ways as a sum of consecutive naturals, for example, 3592 + ... + 12058.

Almost surely, 2^66254275 is an apocalyptic number.

66254275 is a deficient number, since it is larger than the sum of its proper divisors (16173237).

66254275 is a wasteful number, since it uses less digits than its factorization.

66254275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8790 (or 8785 counting only the distinct ones).

The product of its digits is 100800, while the sum is 37.

The square root of 66254275 is about 8139.6729049760. The cubic root of 66254275 is about 404.6423199812.

Subtracting from 66254275 its reverse (57245266), we obtain a palindrome (9009009).

The spelling of 66254275 in words is "sixty-six million, two hundred fifty-four thousand, two hundred seventy-five".