225502040 has 32 divisors (see below), whose sum is σ = 510328080. Its totient is φ = 89676672.

The previous prime is 225502033. The next prime is 225502073. The reversal of 225502040 is 40205522.

225502040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9374 + ... + 23213.

Almost surely, 2^225502040 is an apocalyptic number.

225502040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225502040 is an abundant number, since it is smaller than the sum of its proper divisors (284826040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225502040 is a wasteful number, since it uses less digits than its factorization.

225502040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32771 (or 32767 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 225502040 is about 15016.7253420977. The cubic root of 225502040 is about 608.6722351743.

Adding to 225502040 its reverse (40205522), we get a palindrome (265707562).

The spelling of 225502040 in words is "two hundred twenty-five million, five hundred two thousand, forty".