225322290 has 32 divisors (see below), whose sum is σ = 600860160. Its totient is φ = 60085872.

The previous prime is 225322271. The next prime is 225322297. The reversal of 225322290 is 92223522.

225322290 is a `hidden beast` number, since 22 + 532 + 22 + 90 = 666.

225322290 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 not an unprimeable number, because it can be changed into a prime (225322297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 416994 + ... + 417533.

It is an arithmetic number, because the mean of its divisors is an integer number (18776880).

Almost surely, 2^225322290 is an apocalyptic number.

225322290 is an abundant number, since it is smaller than the sum of its proper divisors (375537870).

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

225322290 is a wasteful number, since it uses less digits than its factorization.

225322290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834543 (or 834537 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 225322290 is about 15010.7391556845. The cubic root of 225322290 is about 608.5104658802.

The spelling of 225322290 in words is "two hundred twenty-five million, three hundred twenty-two thousand, two hundred ninety".