725563 has 4 divisors (see below), whose sum is σ = 728208. Its totient is φ = 722920.

The previous prime is 725537. The next prime is 725579. The reversal of 725563 is 365527.

725563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 725563 - 2⁵ = 725531 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725663) 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, 856 + ... + 1477.

It is an arithmetic number, because the mean of its divisors is an integer number (182052).

2⁷²⁵⁵⁶³ is an apocalyptic number.

725563 is a deficient number, since it is larger than the sum of its proper divisors (2645).

725563 is a wasteful number, since it uses less digits than its factorization.

725563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2644.

The product of its digits is 6300, while the sum is 28.

The square root of 725563 is about 851.7998591218. The cubic root of 725563 is about 89.8583368049.

The spelling of 725563 in words is "seven hundred twenty-five thousand, five hundred sixty-three".