63825720 has 64 divisors (see below), whose sum is σ = 218833920. Its totient is φ = 14588544.

The previous prime is 63825691. The next prime is 63825743. The reversal of 63825720 is 2752836.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37152 + ... + 38831.

It is an arithmetic number, because the mean of its divisors is an integer number (3419280).

Almost surely, 2^63825720 is an apocalyptic number.

63825720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63825720 is an abundant number, since it is smaller than the sum of its proper divisors (155008200).

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

63825720 is a wasteful number, since it uses less digits than its factorization.

63825720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76004 (or 76000 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 63825720 is about 7989.1000744765. The cubic root of 63825720 is about 399.6365865934.

The spelling of 63825720 in words is "sixty-three million, eight hundred twenty-five thousand, seven hundred twenty".