66253063 has 8 divisors (see below), whose sum is σ = 70664832. Its totient is φ = 61898496.

The previous prime is 66253043. The next prime is 66253079. The reversal of 66253063 is 36035266.

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

It is not a de Polignac number, because 66253063 - 2²¹ = 64155911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66253003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11895 + ... + 16552.

It is an arithmetic number, because the mean of its divisors is an integer number (8833104).

Almost surely, 2^66253063 is an apocalyptic number.

66253063 is a deficient number, since it is larger than the sum of its proper divisors (4411769).

66253063 is a wasteful number, since it uses less digits than its factorization.

66253063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28601.

The product of its (nonzero) digits is 19440, while the sum is 31.

The square root of 66253063 is about 8139.5984544694. The cubic root of 66253063 is about 404.6398525707.

The spelling of 66253063 in words is "sixty-six million, two hundred fifty-three thousand, sixty-three".