63825317 has 4 divisors (see below), whose sum is σ = 66026220. Its totient is φ = 61624416.

The previous prime is 63825271. The next prime is 63825319. The reversal of 63825317 is 71352836.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37957921 + 25867396 = 6161^2 + 5086^2 .

It is a cyclic number.

It is not a de Polignac number, because 63825317 - 2¹⁸ = 63563173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63825319) 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, 1100408 + ... + 1100465.

It is an arithmetic number, because the mean of its divisors is an integer number (16506555).

Almost surely, 2^63825317 is an apocalyptic number.

It is an amenable number.

63825317 is a deficient number, since it is larger than the sum of its proper divisors (2200903).

63825317 is a wasteful number, since it uses less digits than its factorization.

63825317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2200902.

The product of its digits is 30240, while the sum is 35.

The square root of 63825317 is about 7989.0748525721. The cubic root of 63825317 is about 399.6357454806.

The spelling of 63825317 in words is "sixty-three million, eight hundred twenty-five thousand, three hundred seventeen".