63278125 has 12 divisors (see below), whose sum is σ = 79096500. Its totient is φ = 50620000.

The previous prime is 63278123. The next prime is 63278141. The reversal of 63278125 is 52187236.

It is a happy number.

63278125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 56821444 + 6456681 = 7538^2 + 2541^2 .

It is not a de Polignac number, because 63278125 - 2¹ = 63278123 is a prime.

It is a super-2 number, since 2×63278125² = 8008242207031250, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63278123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7000 + ... + 13249.

It is an arithmetic number, because the mean of its divisors is an integer number (6591375).

Almost surely, 2^63278125 is an apocalyptic number.

It is an amenable number.

63278125 is a deficient number, since it is larger than the sum of its proper divisors (15818375).

63278125 is an frugal number, since it uses more digits than its factorization.

63278125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20274 (or 20254 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 63278125 is about 7954.7548673733. The cubic root of 63278125 is about 398.4904037147.

The spelling of 63278125 in words is "sixty-three million, two hundred seventy-eight thousand, one hundred twenty-five".