63551713 has 4 divisors (see below), whose sum is σ = 66896560. Its totient is φ = 60206868.

The previous prime is 63551707. The next prime is 63551743. The reversal of 63551713 is 31715536.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63551713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63551743) 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, 1672395 + ... + 1672432.

It is an arithmetic number, because the mean of its divisors is an integer number (16724140).

Almost surely, 2^63551713 is an apocalyptic number.

It is an amenable number.

63551713 is a deficient number, since it is larger than the sum of its proper divisors (3344847).

63551713 is a wasteful number, since it uses less digits than its factorization.

63551713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3344846.

The product of its digits is 9450, while the sum is 31.

The square root of 63551713 is about 7971.9328271129. The cubic root of 63551713 is about 399.0638796558.

The spelling of 63551713 in words is "sixty-three million, five hundred fifty-one thousand, seven hundred thirteen".