225724252456 has 16 divisors (see below), whose sum is σ = 423265947840. Its totient is φ = 112853333040.

The previous prime is 225724252423. The next prime is 225724252487. The reversal of 225724252456 is 654252427522.

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, 989406 + ... + 1195981.

It is an arithmetic number, because the mean of its divisors is an integer number (26454121740).

Almost surely, 2^225724252456 is an apocalyptic number.

It is an amenable number.

225724252456 is a deficient number, since it is larger than the sum of its proper divisors (197541695384).

225724252456 is a wasteful number, since it uses less digits than its factorization.

225724252456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2198304 (or 2198300 counting only the distinct ones).

The product of its digits is 2688000, while the sum is 46.

Adding to 225724252456 its reverse (654252427522), we get a palindrome (879976679978).

The spelling of 225724252456 in words is "two hundred twenty-five billion, seven hundred twenty-four million, two hundred fifty-two thousand, four hundred fifty-six".