725586553 has 8 divisors (see below), whose sum is σ = 746403840. Its totient is φ = 704917920.

The previous prime is 725586551. The next prime is 725586557. The reversal of 725586553 is 355685527.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 725586553 - 2¹ = 725586551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (725586551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27225 + ... + 46822.

It is an arithmetic number, because the mean of its divisors is an integer number (93300480).

Almost surely, 2^725586553 is an apocalyptic number.

It is an amenable number.

725586553 is a deficient number, since it is larger than the sum of its proper divisors (20817287).

725586553 is a wasteful number, since it uses less digits than its factorization.

725586553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74327.

The product of its digits is 1260000, while the sum is 46.

The square root of 725586553 is about 26936.7138493173. The cubic root of 725586553 is about 898.5930911213.

The spelling of 725586553 in words is "seven hundred twenty-five million, five hundred eighty-six thousand, five hundred fifty-three".