225870540 has 48 divisors (see below), whose sum is σ = 722787072. Its totient is φ = 51627456.

The previous prime is 225870539. The next prime is 225870569. The reversal of 225870540 is 45078522.

225870540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 268474 + ... + 269313.

It is an arithmetic number, because the mean of its divisors is an integer number (15058064).

Almost surely, 2^225870540 is an apocalyptic number.

225870540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225870540 is an abundant number, since it is smaller than the sum of its proper divisors (496916532).

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

225870540 is a wasteful number, since it uses less digits than its factorization.

225870540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537806 (or 537804 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 225870540 is about 15028.9899860237. The cubic root of 225870540 is about 609.0036049085.

The spelling of 225870540 in words is "two hundred twenty-five million, eight hundred seventy thousand, five hundred forty".