225388755 has 24 divisors (see below), whose sum is σ = 403278720. Its totient is φ = 116328960.

The previous prime is 225388727. The next prime is 225388789. The reversal of 225388755 is 557883522.

It is not a de Polignac number, because 225388755 - 2⁷ = 225388627 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 225388755.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79390 + ... + 82179.

It is an arithmetic number, because the mean of its divisors is an integer number (16803280).

Almost surely, 2^225388755 is an apocalyptic number.

225388755 is a deficient number, since it is larger than the sum of its proper divisors (177889965).

225388755 is a wasteful number, since it uses less digits than its factorization.

225388755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161611 (or 161608 counting only the distinct ones).

The product of its digits is 672000, while the sum is 45.

The square root of 225388755 is about 15012.9529074063. The cubic root of 225388755 is about 608.5702922915.

The spelling of 225388755 in words is "two hundred twenty-five million, three hundred eighty-eight thousand, seven hundred fifty-five".