63530449 has 2 divisors, whose sum is σ = 63530450. Its totient is φ = 63530448.

The previous prime is 63530437. The next prime is 63530459. The reversal of 63530449 is 94403536.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50339025 + 13191424 = 7095^2 + 3632^2 .

It is a cyclic number.

It is not a de Polignac number, because 63530449 - 2⁹ = 63529937 is a prime.

It is a super-2 number, since 2×63530449² = 8072235900283202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (63530429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31765224 + 31765225.

It is an arithmetic number, because the mean of its divisors is an integer number (31765225).

Almost surely, 2^63530449 is an apocalyptic number.

It is an amenable number.

63530449 is a deficient number, since it is larger than the sum of its proper divisors (1).

63530449 is an equidigital number, since it uses as much as digits as its factorization.

63530449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 63530449 is about 7970.5990364589. The cubic root of 63530449 is about 399.0193666100.

The spelling of 63530449 in words is "sixty-three million, five hundred thirty thousand, four hundred forty-nine".