225724252457 has 8 divisors (see below), whose sum is σ = 247411677792. Its totient is φ = 204231333600.

The previous prime is 225724252423. The next prime is 225724252487. The reversal of 225724252457 is 754252427522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225724252457 - 2⁶ = 225724252393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225724252487) by changing a digit.

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, 48624188 + ... + 48628829.

It is an arithmetic number, because the mean of its divisors is an integer number (30926459724).

Almost surely, 2^225724252457 is an apocalyptic number.

It is an amenable number.

225724252457 is a deficient number, since it is larger than the sum of its proper divisors (21687425335).

225724252457 is a wasteful number, since it uses less digits than its factorization.

225724252457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97253239.

The product of its digits is 3136000, while the sum is 47.

Adding to 225724252457 its reverse (754252427522), we get a palindrome (979976679979).

The spelling of 225724252457 in words is "two hundred twenty-five billion, seven hundred twenty-four million, two hundred fifty-two thousand, four hundred fifty-seven".