225624225257 has 4 divisors (see below), whose sum is σ = 230424740736. Its totient is φ = 220823709780.

The previous prime is 225624225241. The next prime is 225624225259. The reversal of 225624225257 is 752522426522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 225624225257 - 2⁴ = 225624225241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225624225259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2400257669 + ... + 2400257762.

It is an arithmetic number, because the mean of its divisors is an integer number (57606185184).

Almost surely, 2^225624225257 is an apocalyptic number.

It is an amenable number.

225624225257 is a deficient number, since it is larger than the sum of its proper divisors (4800515479).

225624225257 is an equidigital number, since it uses as much as digits as its factorization.

225624225257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4800515478.

The product of its digits is 1344000, while the sum is 44.

The spelling of 225624225257 in words is "two hundred twenty-five billion, six hundred twenty-four million, two hundred twenty-five thousand, two hundred fifty-seven".