525563 has 4 divisors (see below), whose sum is σ = 530328. Its totient is φ = 520800.

The previous prime is 525541. The next prime is 525571. The reversal of 525563 is 365525.

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-525563 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (525533) 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, 2213 + ... + 2438.

It is an arithmetic number, because the mean of its divisors is an integer number (132582).

2⁵²⁵⁵⁶³ is an apocalyptic number.

525563 is a deficient number, since it is larger than the sum of its proper divisors (4765).

525563 is a wasteful number, since it uses less digits than its factorization.

525563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4764.

The product of its digits is 4500, while the sum is 26.

The square root of 525563 is about 724.9572401183. The cubic root of 525563 is about 80.7002588351.

The spelling of 525563 in words is "five hundred twenty-five thousand, five hundred sixty-three".