225723397025 has 24 divisors (see below), whose sum is σ = 324387702144. Its totient is φ = 152601724800.

The previous prime is 225723397013. The next prime is 225723397033. The reversal of 225723397025 is 520793327522.

It is a happy number.

It is not a de Polignac number, because 225723397025 - 2⁶ = 225723396961 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9071012 + ... + 9095861.

It is an arithmetic number, because the mean of its divisors is an integer number (13516154256).

Almost surely, 2^225723397025 is an apocalyptic number.

225723397025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225723397025 is a deficient number, since it is larger than the sum of its proper divisors (98664305119).

225723397025 is a wasteful number, since it uses less digits than its factorization.

225723397025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18166961 (or 18166956 counting only the distinct ones).

The product of its (nonzero) digits is 1587600, while the sum is 47.

The spelling of 225723397025 in words is "two hundred twenty-five billion, seven hundred twenty-three million, three hundred ninety-seven thousand, twenty-five".