63567025 has 6 divisors (see below), whose sum is σ = 78823142. Its totient is φ = 50853600.

The previous prime is 63567011. The next prime is 63567067. The reversal of 63567025 is 52076536.

It can be written as a sum of positive squares in 3 ways, for example, as 5456896 + 58110129 = 2336^2 + 7623^2 .

It is a de Polignac number, because none of the positive numbers 2^k-63567025 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1271316 + ... + 1271365.

Almost surely, 2^63567025 is an apocalyptic number.

It is an amenable number.

63567025 is a deficient number, since it is larger than the sum of its proper divisors (15256117).

63567025 is a wasteful number, since it uses less digits than its factorization.

63567025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2542691 (or 2542686 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 34.

The square root of 63567025 is about 7972.8931386292. The cubic root of 63567025 is about 399.0959269191.

The spelling of 63567025 in words is "sixty-three million, five hundred sixty-seven thousand, twenty-five".