63501516 has 96 divisors (see below), whose sum is σ = 183142400. Its totient is φ = 18895680.

The previous prime is 63501499. The next prime is 63501539. The reversal of 63501516 is 61510536.

It is a happy number.

63501516 is a `hidden beast` number, since 635 + 0 + 15 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 63501516.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42795 + ... + 44253.

Almost surely, 2^63501516 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 63501516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91571200).

63501516 is an abundant number, since it is smaller than the sum of its proper divisors (119640884).

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

63501516 is a wasteful number, since it uses less digits than its factorization.

63501516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516 (or 1508 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 63501516 is about 7968.7838469869. The cubic root of 63501516 is about 398.9587836899.

The spelling of 63501516 in words is "sixty-three million, five hundred one thousand, five hundred sixteen".