63473533 has 4 divisors (see below), whose sum is σ = 63750940. Its totient is φ = 63196128.

The previous prime is 63473521. The next prime is 63473539. The reversal of 63473533 is 33537436.

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

It can be written as a sum of positive squares in 2 ways, for example, as 60186564 + 3286969 = 7758^2 + 1813^2 .

It is a cyclic number.

It is not a de Polignac number, because 63473533 - 2⁹ = 63473021 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 (63473539) 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, 138360 + ... + 138817.

It is an arithmetic number, because the mean of its divisors is an integer number (15937735).

Almost surely, 2^63473533 is an apocalyptic number.

It is an amenable number.

63473533 is a deficient number, since it is larger than the sum of its proper divisors (277407).

63473533 is a wasteful number, since it uses less digits than its factorization.

63473533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277406.

The product of its digits is 68040, while the sum is 34.

The square root of 63473533 is about 7967.0278648942. The cubic root of 63473533 is about 398.9001724701.

The spelling of 63473533 in words is "sixty-three million, four hundred seventy-three thousand, five hundred thirty-three".