63521038 has 16 divisors (see below), whose sum is σ = 109100160. Its totient is φ = 27171576.

The previous prime is 63521033. The next prime is 63521039. The reversal of 63521038 is 83012536.

It is a junction number, because it is equal to n+sod(n) for n = 63520997 and 63521015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63521033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3853 + ... + 11911.

It is an arithmetic number, because the mean of its divisors is an integer number (6818760).

Almost surely, 2^63521038 is an apocalyptic number.

63521038 is a deficient number, since it is larger than the sum of its proper divisors (45579122).

63521038 is a wasteful number, since it uses less digits than its factorization.

63521038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8631.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 63521038 is about 7970.0086574608. The cubic root of 63521038 is about 398.9996628997. Note that the first 3 decimals are identical.

The spelling of 63521038 in words is "sixty-three million, five hundred twenty-one thousand, thirty-eight".