63501489 has 12 divisors (see below), whose sum is σ = 95121936. Its totient is φ = 42334164.

The previous prime is 63501479. The next prime is 63501491. The reversal of 63501489 is 98410536.

63501489 is a `hidden beast` number, since 635 + 0 + 14 + 8 + 9 = 666.

It is not a de Polignac number, because 63501489 - 2⁹ = 63500977 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63501479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130419 + ... + 130904.

It is an arithmetic number, because the mean of its divisors is an integer number (7926828).

Almost surely, 2^63501489 is an apocalyptic number.

It is an amenable number.

63501489 is a deficient number, since it is larger than the sum of its proper divisors (31620447).

63501489 is an equidigital number, since it uses as much as digits as its factorization.

63501489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261338 (or 261326 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 63501489 is about 7968.7821528763. The cubic root of 63501489 is about 398.9587271459.

The spelling of 63501489 in words is "sixty-three million, five hundred one thousand, four hundred eighty-nine".