63320547 has 4 divisors (see below), whose sum is σ = 84427400. Its totient is φ = 42213696.

The previous prime is 63320539. The next prime is 63320611. The reversal of 63320547 is 74502336.

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

It is not a de Polignac number, because 63320547 - 2³ = 63320539 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (63320947) 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, 10553422 + ... + 10553427.

It is an arithmetic number, because the mean of its divisors is an integer number (21106850).

Almost surely, 2^63320547 is an apocalyptic number.

63320547 is a deficient number, since it is larger than the sum of its proper divisors (21106853).

63320547 is a wasteful number, since it uses less digits than its factorization.

63320547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21106852.

The product of its (nonzero) digits is 15120, while the sum is 30.

The square root of 63320547 is about 7957.4208761382. The cubic root of 63320547 is about 398.5794338687.

The spelling of 63320547 in words is "sixty-three million, three hundred twenty thousand, five hundred forty-seven".