225902247 has 8 divisors (see below), whose sum is σ = 301513344. Its totient is φ = 150446328.

The previous prime is 225902231. The next prime is 225902249. The reversal of 225902247 is 742209522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 225902247 - 2⁴ = 225902231 is a prime.

It is a super-3 number, since 3×225902247³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225902249) 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, 35353 + ... + 41250.

It is an arithmetic number, because the mean of its divisors is an integer number (37689168).

Almost surely, 2^225902247 is an apocalyptic number.

225902247 is a deficient number, since it is larger than the sum of its proper divisors (75611097).

225902247 is an equidigital number, since it uses as much as digits as its factorization.

225902247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77589.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 225902247 is about 15030.0448103124. The cubic root of 225902247 is about 609.0321002490.

The spelling of 225902247 in words is "two hundred twenty-five million, nine hundred two thousand, two hundred forty-seven".