225776508 has 24 divisors (see below), whose sum is σ = 528917760. Its totient is φ = 74958000.

The previous prime is 225776501. The next prime is 225776543. The reversal of 225776508 is 805677522.

It is a self number, because there is not a number n which added to its sum of digits gives 225776508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225776501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34468 + ... + 40491.

It is an arithmetic number, because the mean of its divisors is an integer number (22038240).

Almost surely, 2^225776508 is an apocalyptic number.

It is an amenable number.

225776508 is an abundant number, since it is smaller than the sum of its proper divisors (303141252).

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

225776508 is a wasteful number, since it uses less digits than its factorization.

225776508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75217 (or 75215 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 42.

The square root of 225776508 is about 15025.8613064277. The cubic root of 225776508 is about 608.9190818958.

The spelling of 225776508 in words is "two hundred twenty-five million, seven hundred seventy-six thousand, five hundred eight".