63251456 has 44 divisors (see below), whose sum is σ = 133136880. Its totient is φ = 29952000.

The previous prime is 63251453. The next prime is 63251467. The reversal of 63251456 is 65415236.

It is a super-2 number, since 2×63251456² = 8001493372239872, which contains 22 as substring.

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 (63251453) 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, 17831 + ... + 21081.

Almost surely, 2^63251456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63251456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66568440).

63251456 is an abundant number, since it is smaller than the sum of its proper divisors (69885424).

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

63251456 is a wasteful number, since it uses less digits than its factorization.

63251456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3290 (or 3272 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 63251456 is about 7953.0783977024. The cubic root of 63251456 is about 398.4344136765.

The spelling of 63251456 in words is "sixty-three million, two hundred fifty-one thousand, four hundred fifty-six".