63521454 has 16 divisors (see below), whose sum is σ = 129440592. Its totient is φ = 20774208.

The previous prime is 63521429. The next prime is 63521459. The reversal of 63521454 is 45412536.

63521454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63521459) 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 7 ways as a sum of consecutive naturals, for example, 99559 + ... + 100194.

It is an arithmetic number, because the mean of its divisors is an integer number (8090037).

Almost surely, 2^63521454 is an apocalyptic number.

63521454 is an abundant number, since it is smaller than the sum of its proper divisors (65919138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63521454 is a wasteful number, since it uses less digits than its factorization.

63521454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199811.

The product of its digits is 14400, while the sum is 30.

The square root of 63521454 is about 7970.0347552567. The cubic root of 63521454 is about 399.0005339155. Note that the first 3 decimals are identical.

The spelling of 63521454 in words is "sixty-three million, five hundred twenty-one thousand, four hundred fifty-four".