225049042 has 4 divisors (see below), whose sum is σ = 337573566. Its totient is φ = 112524520.

The previous prime is 225049039. The next prime is 225049051. The reversal of 225049042 is 240940522.

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

It can be written as a sum of positive squares in only one way, i.e., 183304521 + 41744521 = 13539^2 + 6461^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 225049042.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56262259 + ... + 56262262.

Almost surely, 2^225049042 is an apocalyptic number.

225049042 is a deficient number, since it is larger than the sum of its proper divisors (112524524).

225049042 is a wasteful number, since it uses less digits than its factorization.

225049042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112524523.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 225049042 is about 15001.6346442646. The cubic root of 225049042 is about 608.2643864731.

Adding to 225049042 its reverse (240940522), we get a palindrome (465989564).

It can be divided in two parts, 2 and 25049042, that multiplied together give a square (50098084 = 7078²).

The spelling of 225049042 in words is "two hundred twenty-five million, forty-nine thousand, forty-two".