65552563 has 4 divisors (see below), whose sum is σ = 67151448. Its totient is φ = 63953680.

The previous prime is 65552533. The next prime is 65552579. The reversal of 65552563 is 36525556.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65552563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65552533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 799381 + ... + 799462.

It is an arithmetic number, because the mean of its divisors is an integer number (16787862).

Almost surely, 2^65552563 is an apocalyptic number.

65552563 is a deficient number, since it is larger than the sum of its proper divisors (1598885).

65552563 is a wasteful number, since it uses less digits than its factorization.

65552563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1598884.

The product of its digits is 135000, while the sum is 37.

The square root of 65552563 is about 8096.4537298746. The cubic root of 65552563 is about 403.2086980669.

The spelling of 65552563 in words is "sixty-five million, five hundred fifty-two thousand, five hundred sixty-three".