225625322155 has 4 divisors (see below), whose sum is σ = 270750386592. Its totient is φ = 180500257720.

The previous prime is 225625322113. The next prime is 225625322159. The reversal of 225625322155 is 551223526522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 551223526522 = 2 ⋅275611763261.

It is not a de Polignac number, because 225625322155 - 2²⁷ = 225491104427 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225625322159) 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, 22562532211 + ... + 22562532220.

It is an arithmetic number, because the mean of its divisors is an integer number (67687596648).

Almost surely, 2^225625322155 is an apocalyptic number.

225625322155 is a deficient number, since it is larger than the sum of its proper divisors (45125064437).

225625322155 is an equidigital number, since it uses as much as digits as its factorization.

225625322155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45125064436.

The product of its digits is 360000, while the sum is 40.

Adding to 225625322155 its reverse (551223526522), we get a palindrome (776848848677).

The spelling of 225625322155 in words is "two hundred twenty-five billion, six hundred twenty-five million, three hundred twenty-two thousand, one hundred fifty-five".