725575500 has 288 divisors, whose sum is σ = 2512124160. Its totient is φ = 175219200.

The previous prime is 725575481. The next prime is 725575517. The reversal of 725575500 is 5575527.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4621422 + ... + 4621578.

Almost surely, 2^725575500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 725575500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1256062080).

725575500 is an abundant number, since it is smaller than the sum of its proper divisors (1786548660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

725575500 is a wasteful number, since it uses less digits than its factorization.

725575500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 61250, while the sum is 36.

The square root of 725575500 is about 26936.5086824555. The cubic root of 725575500 is about 898.5885282842.

The spelling of 725575500 in words is "seven hundred twenty-five million, five hundred seventy-five thousand, five hundred".