63534565 has 16 divisors (see below), whose sum is σ = 77644800. Its totient is φ = 49900032.

The previous prime is 63534547. The next prime is 63534619. The reversal of 63534565 is 56543536.

It is a cyclic number.

It is not a de Polignac number, because 63534565 - 2¹⁵ = 63501797 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94069 + ... + 94741.

It is an arithmetic number, because the mean of its divisors is an integer number (4852800).

Almost surely, 2^63534565 is an apocalyptic number.

It is an amenable number.

63534565 is a deficient number, since it is larger than the sum of its proper divisors (14110235).

63534565 is a wasteful number, since it uses less digits than its factorization.

63534565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996.

The product of its digits is 162000, while the sum is 37.

The square root of 63534565 is about 7970.8572311891. The cubic root of 63534565 is about 399.0279836237.

The spelling of 63534565 in words is "sixty-three million, five hundred thirty-four thousand, five hundred sixty-five".