725800505530 has 8 divisors (see below), whose sum is σ = 1306440909972. Its totient is φ = 290320202208.

The previous prime is 725800505513. The next prime is 725800505587. The reversal of 725800505530 is 35505008527.

It is a happy number.

725800505530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 705023877649 + 20776627881 = 839657^2 + 144141^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36290025267 + ... + 36290025286.

Almost surely, 2^725800505530 is an apocalyptic number.

725800505530 is a deficient number, since it is larger than the sum of its proper divisors (580640404442).

725800505530 is a wasteful number, since it uses less digits than its factorization.

725800505530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72580050560.

The product of its (nonzero) digits is 210000, while the sum is 40.

The spelling of 725800505530 in words is "seven hundred twenty-five billion, eight hundred million, five hundred five thousand, five hundred thirty".