63521042 has 8 divisors (see below), whose sum is σ = 102610956. Its totient is φ = 29317392.

The previous prime is 63521039. The next prime is 63521053. The reversal of 63521042 is 24012536.

It can be written as a sum of positive squares in 2 ways, for example, as 62078641 + 1442401 = 7879^2 + 1201^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 63520999 and 63521017.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1221533 + ... + 1221584.

Almost surely, 2^63521042 is an apocalyptic number.

63521042 is a deficient number, since it is larger than the sum of its proper divisors (39089914).

63521042 is a wasteful number, since it uses less digits than its factorization.

63521042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2443132.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 63521042 is about 7970.0089084015. The cubic root of 63521042 is about 398.9996712748. Note that the first 3 decimals are identical.

Adding to 63521042 its reverse (24012536), we get a palindrome (87533578).

The spelling of 63521042 in words is "sixty-three million, five hundred twenty-one thousand, forty-two".