63251321 has 8 divisors (see below), whose sum is σ = 73100160. Its totient is φ = 53605728.

The previous prime is 63251297. The next prime is 63251329. The reversal of 63251321 is 12315236.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63251321 - 2⁶ = 63251257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63251329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50141 + ... + 51386.

It is an arithmetic number, because the mean of its divisors is an integer number (9137520).

Almost surely, 2^63251321 is an apocalyptic number.

It is an amenable number.

63251321 is a deficient number, since it is larger than the sum of its proper divisors (9848839).

63251321 is a wasteful number, since it uses less digits than its factorization.

63251321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101623.

The product of its digits is 1080, while the sum is 23.

The square root of 63251321 is about 7953.0699104182. The cubic root of 63251321 is about 398.4341302117.

Adding to 63251321 its reverse (12315236), we get a palindrome (75566557).

The spelling of 63251321 in words is "sixty-three million, two hundred fifty-one thousand, three hundred twenty-one".