225520038 has 24 divisors (see below), whose sum is σ = 506725128. Its totient is φ = 75173184.

The previous prime is 225519953. The next prime is 225520039. The reversal of 225520038 is 830025522.

225520038 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 (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 225519993 and 225520020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225520039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 231531 + ... + 232502.

It is an arithmetic number, because the mean of its divisors is an integer number (21113547).

Almost surely, 2^225520038 is an apocalyptic number.

225520038 is an abundant number, since it is smaller than the sum of its proper divisors (281205090).

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

225520038 is an equidigital number, since it uses as much as digits as its factorization.

225520038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464050 (or 464038 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 225520038 is about 15017.3245952799. The cubic root of 225520038 is about 608.6884280676.

The spelling of 225520038 in words is "two hundred twenty-five million, five hundred twenty thousand, thirty-eight".