63295381 has 2 divisors, whose sum is σ = 63295382. Its totient is φ = 63295380.

The previous prime is 63295361. The next prime is 63295391. The reversal of 63295381 is 18359236.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41486481 + 21808900 = 6441^2 + 4670^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63295381 is a prime.

It is a super-2 number, since 2×63295381² = 8012610511870322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63295381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63295361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31647690 + 31647691.

It is an arithmetic number, because the mean of its divisors is an integer number (31647691).

Almost surely, 2^63295381 is an apocalyptic number.

It is an amenable number.

63295381 is a deficient number, since it is larger than the sum of its proper divisors (1).

63295381 is an equidigital number, since it uses as much as digits as its factorization.

63295381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 37.

The square root of 63295381 is about 7955.8394277411. The cubic root of 63295381 is about 398.5266233163.

The spelling of 63295381 in words is "sixty-three million, two hundred ninety-five thousand, three hundred eighty-one".