225545232142 has 32 divisors (see below), whose sum is σ = 357075449280. Its totient is φ = 106691262720.

The previous prime is 225545232127. The next prime is 225545232173. The reversal of 225545232142 is 241232545522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 809298 + ... + 1051690.

It is an arithmetic number, because the mean of its divisors is an integer number (11158607790).

Almost surely, 2^225545232142 is an apocalyptic number.

225545232142 is a deficient number, since it is larger than the sum of its proper divisors (131530217138).

225545232142 is a wasteful number, since it uses less digits than its factorization.

225545232142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242748.

The product of its digits is 192000, while the sum is 37.

Adding to 225545232142 its reverse (241232545522), we get a palindrome (466777777664).

The spelling of 225545232142 in words is "two hundred twenty-five billion, five hundred forty-five million, two hundred thirty-two thousand, one hundred forty-two".