63278580 has 96 divisors (see below), whose sum is σ = 187971840. Its totient is φ = 15877120.

The previous prime is 63278561. The next prime is 63278581. The reversal of 63278580 is 8587236.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63278581) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70897 + ... + 71783.

It is an arithmetic number, because the mean of its divisors is an integer number (1958040).

Almost surely, 2^63278580 is an apocalyptic number.

63278580 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63278580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93985920).

63278580 is an abundant number, since it is smaller than the sum of its proper divisors (124693260).

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

63278580 is a wasteful number, since it uses less digits than its factorization.

63278580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969 (or 967 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 63278580 is about 7954.7834665690. The cubic root of 63278580 is about 398.4913588246.

The spelling of 63278580 in words is "sixty-three million, two hundred seventy-eight thousand, five hundred eighty".