63251317 has 4 divisors (see below), whose sum is σ = 63361516. Its totient is φ = 63141120.

The previous prime is 63251297. The next prime is 63251329. The reversal of 63251317 is 71315236.

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 55219761 + 8031556 = 7431^2 + 2834^2 .

It is a cyclic number.

It is not a de Polignac number, because 63251317 - 2⁷ = 63251189 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 (63251347) 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, 54234 + ... + 55387.

It is an arithmetic number, because the mean of its divisors is an integer number (15840379).

Almost surely, 2^63251317 is an apocalyptic number.

It is an amenable number.

63251317 is a deficient number, since it is larger than the sum of its proper divisors (110199).

63251317 is a wasteful number, since it uses less digits than its factorization.

63251317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110198.

The product of its digits is 3780, while the sum is 28.

The square root of 63251317 is about 7953.0696589430. The cubic root of 63251317 is about 398.4341218127.

The spelling of 63251317 in words is "sixty-three million, two hundred fifty-one thousand, three hundred seventeen".