63051440 has 80 divisors (see below), whose sum is σ = 153740160. Its totient is φ = 24023040.

The previous prime is 63051437. The next prime is 63051463. The reversal of 63051440 is 4415036.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153956 + ... + 154364.

It is an arithmetic number, because the mean of its divisors is an integer number (1921752).

Almost surely, 2^63051440 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 63051440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76870080).

63051440 is an abundant number, since it is smaller than the sum of its proper divisors (90688720).

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

63051440 is a wasteful number, since it uses less digits than its factorization.

63051440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510 (or 504 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 63051440 is about 7940.4936874227. The cubic root of 63051440 is about 398.0139890540.

Adding to 63051440 its reverse (4415036), we get a palindrome (67466476).

The spelling of 63051440 in words is "sixty-three million, fifty-one thousand, four hundred forty".