63671256 has 96 divisors (see below), whose sum is σ = 199227600. Its totient is φ = 18155520.

The previous prime is 63671233. The next prime is 63671263. The reversal of 63671256 is 65217636.

63671256 is a `hidden beast` number, since 636 + 7 + 12 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 5.

It is a self number, because there is not a number n which added to its sum of digits gives 63671256.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11100 + ... + 15828.

Almost surely, 2^63671256 is an apocalyptic number.

63671256 is a gapful number since it is divisible by the number (66) 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 63671256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99613800).

63671256 is an abundant number, since it is smaller than the sum of its proper divisors (135556344).

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

63671256 is a wasteful number, since it uses less digits than its factorization.

63671256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4769 (or 4762 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 63671256 is about 7979.4270471006. The cubic root of 63671256 is about 399.3139406458.

The spelling of 63671256 in words is "sixty-three million, six hundred seventy-one thousand, two hundred fifty-six".