225100442 has 32 divisors (see below), whose sum is σ = 397056000. Its totient is φ = 93704688.

The previous prime is 225100441. The next prime is 225100481. The reversal of 225100442 is 244001522.

It is a happy number.

225100442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (225100441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118859 + ... + 120737.

It is an arithmetic number, because the mean of its divisors is an integer number (12408000).

Almost surely, 2^225100442 is an apocalyptic number.

225100442 is a deficient number, since it is larger than the sum of its proper divisors (171955558).

225100442 is a wasteful number, since it uses less digits than its factorization.

225100442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 225100442 is about 15003.3476930984. The cubic root of 225100442 is about 608.3106910611.

Adding to 225100442 its reverse (244001522), we get a palindrome (469101964).

The spelling of 225100442 in words is "two hundred twenty-five million, one hundred thousand, four hundred forty-two".