725276218 has 16 divisors (see below), whose sum is σ = 1105700544. Its totient is φ = 356732320.

The previous prime is 725276207. The next prime is 725276239. The reversal of 725276218 is 812672527.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 60846 + ... + 71782.

It is an arithmetic number, because the mean of its divisors is an integer number (69106284).

Almost surely, 2^725276218 is an apocalyptic number.

725276218 is a deficient number, since it is larger than the sum of its proper divisors (380424326).

725276218 is a wasteful number, since it uses less digits than its factorization.

725276218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11477.

The product of its digits is 94080, while the sum is 40.

The square root of 725276218 is about 26930.9527867099. The cubic root of 725276218 is about 898.4649627576.

The spelling of 725276218 in words is "seven hundred twenty-five million, two hundred seventy-six thousand, two hundred eighteen".