725587 has 2 divisors, whose sum is σ = 725588. Its totient is φ = 725586.

The previous prime is 725579. The next prime is 725597. The reversal of 725587 is 785527.

It is a weak prime.

It is an emirp because it is prime and its reverse (785527) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 725587 - 2³ = 725579 is a prime.

725587 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (725507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362793 + 362794.

It is an arithmetic number, because the mean of its divisors is an integer number (362794).

2⁷²⁵⁵⁸⁷ is an apocalyptic number.

725587 is a deficient number, since it is larger than the sum of its proper divisors (1).

725587 is an equidigital number, since it uses as much as digits as its factorization.

725587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19600, while the sum is 34.

The square root of 725587 is about 851.8139468217. The cubic root of 725587 is about 89.8593275648.

The spelling of 725587 in words is "seven hundred twenty-five thousand, five hundred eighty-seven".