225756028 has 6 divisors (see below), whose sum is σ = 395073056. Its totient is φ = 112878012.

The previous prime is 225756019. The next prime is 225756029. The reversal of 225756028 is 820657522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225756029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28219500 + ... + 28219507.

Almost surely, 2^225756028 is an apocalyptic number.

It is an amenable number.

225756028 is a deficient number, since it is larger than the sum of its proper divisors (169317028).

225756028 is a wasteful number, since it uses less digits than its factorization.

225756028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56439011 (or 56439009 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 225756028 is about 15025.1797992570. The cubic root of 225756028 is about 608.9006698239.

It can be divided in two parts, 2257 and 56028, that added together give a palindrome (58285).

The spelling of 225756028 in words is "two hundred twenty-five million, seven hundred fifty-six thousand, twenty-eight".