725024180 has 12 divisors (see below), whose sum is σ = 1522550820. Its totient is φ = 290009664.

The previous prime is 725024129. The next prime is 725024191. The reversal of 725024180 is 81420527.

It can be written as a sum of positive squares in 2 ways, for example, as 440832016 + 284192164 = 20996^2 + 16858^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18125585 + ... + 18125624.

It is an arithmetic number, because the mean of its divisors is an integer number (126879235).

Almost surely, 2^725024180 is an apocalyptic number.

It is an amenable number.

725024180 is an abundant number, since it is smaller than the sum of its proper divisors (797526640).

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

725024180 is a wasteful number, since it uses less digits than its factorization.

725024180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36251218 (or 36251216 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 725024180 is about 26926.2730432565. The cubic root of 725024180 is about 898.3608766442.

The spelling of 725024180 in words is "seven hundred twenty-five million, twenty-four thousand, one hundred eighty".