725407089 has 24 divisors (see below), whose sum is σ = 1084493088. Its totient is φ = 427731840.

The previous prime is 725407087. The next prime is 725407091. The reversal of 725407089 is 980704527.

It is an interprime number because it is at equal distance from previous prime (725407087) and next prime (725407091).

It is not a de Polignac number, because 725407089 - 2¹ = 725407087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 725407089.

It is not an unprimeable number, because it can be changed into a prime (725407087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37149 + ... + 53205.

It is an arithmetic number, because the mean of its divisors is an integer number (45187212).

Almost surely, 2^725407089 is an apocalyptic number.

It is an amenable number.

725407089 is a deficient number, since it is larger than the sum of its proper divisors (359085999).

725407089 is a wasteful number, since it uses less digits than its factorization.

725407089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16145 (or 16108 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 725407089 is about 26933.3824277605. The cubic root of 725407089 is about 898.5190000717.

The spelling of 725407089 in words is "seven hundred twenty-five million, four hundred seven thousand, eighty-nine".