66254283 has 24 divisors (see below), whose sum is σ = 100882080. Its totient is φ = 41817600.

The previous prime is 66254261. The next prime is 66254291. The reversal of 66254283 is 38245266.

66254283 is a `hidden beast` number, since 6 + 625 + 4 + 28 + 3 = 666.

It is not a de Polignac number, because 66254283 - 2¹² = 66250187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66254203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19323 + ... + 22491.

It is an arithmetic number, because the mean of its divisors is an integer number (4203420).

Almost surely, 2^66254283 is an apocalyptic number.

66254283 is a deficient number, since it is larger than the sum of its proper divisors (34627797).

66254283 is a wasteful number, since it uses less digits than its factorization.

66254283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3299 (or 3296 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 66254283 is about 8139.6733963962. The cubic root of 66254283 is about 404.6423362676.

It can be divided in two parts, 662 and 54283, that added together give a palindrome (54945).

The spelling of 66254283 in words is "sixty-six million, two hundred fifty-four thousand, two hundred eighty-three".