63503430 has 64 divisors (see below), whose sum is σ = 156515328. Its totient is φ = 16485120.

The previous prime is 63503423. The next prime is 63503431. The reversal of 63503430 is 3430536.

It is a self number, because there is not a number n which added to its sum of digits gives 63503430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63503431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 234195 + ... + 234465.

It is an arithmetic number, because the mean of its divisors is an integer number (2445552).

Almost surely, 2^63503430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63503430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78257664).

63503430 is an abundant number, since it is smaller than the sum of its proper divisors (93011898).

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

63503430 is a wasteful number, since it uses less digits than its factorization.

63503430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461.

The product of its (nonzero) digits is 3240, while the sum is 24.

The square root of 63503430 is about 7968.9039396896. The cubic root of 63503430 is about 398.9627919902.

Adding to 63503430 its reverse (3430536), we get a palindrome (66933966).

The spelling of 63503430 in words is "sixty-three million, five hundred three thousand, four hundred thirty".