63273257 has 2 divisors, whose sum is σ = 63273258. Its totient is φ = 63273256.

The previous prime is 63273251. The next prime is 63273323. The reversal of 63273257 is 75237236.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41267776 + 22005481 = 6424^2 + 4691^2 .

It is a cyclic number.

It is not a de Polignac number, because 63273257 - 2⁴ = 63273241 is a prime.

It is not a weakly prime, because it can be changed into another prime (63273251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31636628 + 31636629.

It is an arithmetic number, because the mean of its divisors is an integer number (31636629).

Almost surely, 2^63273257 is an apocalyptic number.

It is an amenable number.

63273257 is a deficient number, since it is larger than the sum of its proper divisors (1).

63273257 is an equidigital number, since it uses as much as digits as its factorization.

63273257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 35.

The square root of 63273257 is about 7954.4488809722. The cubic root of 63273257 is about 398.4801848013.

The spelling of 63273257 in words is "sixty-three million, two hundred seventy-three thousand, two hundred fifty-seven".