66255283 has 4 divisors (see below), whose sum is σ = 67188528. Its totient is φ = 65322040.

The previous prime is 66255257. The next prime is 66255317. The reversal of 66255283 is 38255266.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66255283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66255253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 466516 + ... + 466657.

It is an arithmetic number, because the mean of its divisors is an integer number (16797132).

Almost surely, 2^66255283 is an apocalyptic number.

66255283 is a deficient number, since it is larger than the sum of its proper divisors (933245).

66255283 is an equidigital number, since it uses as much as digits as its factorization.

66255283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933244.

The product of its digits is 86400, while the sum is 37.

The square root of 66255283 is about 8139.7348236905. The cubic root of 66255283 is about 404.6443720620.

It can be divided in two parts, 662 and 55283, that added together give a triangular number (55945 = T₃₃₄).

The spelling of 66255283 in words is "sixty-six million, two hundred fifty-five thousand, two hundred eighty-three".