225132505427 has 4 divisors (see below), whose sum is σ = 236981584680. Its totient is φ = 213283426176.

The previous prime is 225132505417. The next prime is 225132505439. The reversal of 225132505427 is 724505231522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 225132505427 - 2⁶ = 225132505363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225132505417) 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, 5924539598 + ... + 5924539635.

It is an arithmetic number, because the mean of its divisors is an integer number (59245396170).

Almost surely, 2^225132505427 is an apocalyptic number.

225132505427 is a deficient number, since it is larger than the sum of its proper divisors (11849079253).

225132505427 is a wasteful number, since it uses less digits than its factorization.

225132505427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11849079252.

The product of its (nonzero) digits is 168000, while the sum is 38.

Adding to 225132505427 its reverse (724505231522), we get a palindrome (949637736949).

The spelling of 225132505427 in words is "two hundred twenty-five billion, one hundred thirty-two million, five hundred five thousand, four hundred twenty-seven".