63750000 has 160 divisors (see below), whose sum is σ = 217968192. Its totient is φ = 16000000.

The previous prime is 63749993. The next prime is 63750019. The reversal of 63750000 is 5736.

It is a congruent number.

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, 3749992 + ... + 3750008.

Almost surely, 2^63750000 is an apocalyptic number.

63750000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63750000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108984096).

63750000 is an abundant number, since it is smaller than the sum of its proper divisors (154218192).

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

63750000 is an frugal number, since it uses more digits than its factorization.

63750000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63 (or 27 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 63750000 is about 7984.3597113357. The cubic root of 63750000 is about 399.4784870227.

Adding to 63750000 its reverse (5736), we get a palindrome (63755736).

The spelling of 63750000 in words is "sixty-three million, seven hundred fifty thousand".