63441975 has 12 divisors (see below), whose sum is σ = 104890856. Its totient is φ = 33835680.

The previous prime is 63441971. The next prime is 63442009. The reversal of 63441975 is 57914436.

It is not a de Polignac number, because 63441975 - 2² = 63441971 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63441971) 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, 422872 + ... + 423021.

Almost surely, 2^63441975 is an apocalyptic number.

63441975 is a deficient number, since it is larger than the sum of its proper divisors (41448881).

63441975 is a wasteful number, since it uses less digits than its factorization.

63441975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845906 (or 845901 counting only the distinct ones).

The product of its digits is 90720, while the sum is 39.

The square root of 63441975 is about 7965.0470808401. The cubic root of 63441975 is about 398.8340526357.

The spelling of 63441975 in words is "sixty-three million, four hundred forty-one thousand, nine hundred seventy-five".