725668575 has 24 divisors (see below), whose sum is σ = 1202192400. Its totient is φ = 386242560.

The previous prime is 725668571. The next prime is 725668583. The reversal of 725668575 is 575866527.

It is a happy number.

It is not a de Polignac number, because 725668575 - 2² = 725668571 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725668571) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28671 + ... + 47679.

It is an arithmetic number, because the mean of its divisors is an integer number (50091350).

Almost surely, 2^725668575 is an apocalyptic number.

725668575 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

725668575 is a deficient number, since it is larger than the sum of its proper divisors (476523825).

725668575 is a wasteful number, since it uses less digits than its factorization.

725668575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19531 (or 19526 counting only the distinct ones).

The product of its digits is 3528000, while the sum is 51.

The square root of 725668575 is about 26938.2363008420. The cubic root of 725668575 is about 898.6269495334.

The spelling of 725668575 in words is "seven hundred twenty-five million, six hundred sixty-eight thousand, five hundred seventy-five".