63267481 has 4 divisors (see below), whose sum is σ = 63473872. Its totient is φ = 63061092.

The previous prime is 63267467. The next prime is 63267487. The reversal of 63267481 is 18476236.

63267481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63267481 - 2⁹ = 63266969 is a prime.

It is a super-2 number, since 2×63267481² = 8005548304170722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63267481.

It is not an unprimeable number, because it can be changed into a prime (63267487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102735 + ... + 103348.

It is an arithmetic number, because the mean of its divisors is an integer number (15868468).

Almost surely, 2^63267481 is an apocalyptic number.

It is an amenable number.

63267481 is a deficient number, since it is larger than the sum of its proper divisors (206391).

63267481 is a wasteful number, since it uses less digits than its factorization.

63267481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206390.

The product of its digits is 48384, while the sum is 37.

The square root of 63267481 is about 7954.0858054210. The cubic root of 63267481 is about 398.4680591330.

The spelling of 63267481 in words is "sixty-three million, two hundred sixty-seven thousand, four hundred eighty-one".