63172256 has 24 divisors (see below), whose sum is σ = 142138080. Its totient is φ = 27073728.

The previous prime is 63172253. The next prime is 63172279. The reversal of 63172256 is 65227136.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (63172253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140786 + ... + 141233.

It is an arithmetic number, because the mean of its divisors is an integer number (5922420).

Almost surely, 2^63172256 is an apocalyptic number.

It is an amenable number.

63172256 is an abundant number, since it is smaller than the sum of its proper divisors (78965824).

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

63172256 is a wasteful number, since it uses less digits than its factorization.

63172256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282036 (or 282028 counting only the distinct ones).

The product of its digits is 15120, while the sum is 32.

The square root of 63172256 is about 7948.0976340254. The cubic root of 63172256 is about 398.2680449864.

The spelling of 63172256 in words is "sixty-three million, one hundred seventy-two thousand, two hundred fifty-six".