225711207 has 12 divisors (see below), whose sum is σ = 328105960. Its totient is φ = 149514768.

The previous prime is 225711133. The next prime is 225711221. The reversal of 225711207 is 702117522.

225711207 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 225711207 - 2¹⁹ = 225186919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225711247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78457 + ... + 81282.

Almost surely, 2^225711207 is an apocalyptic number.

225711207 is a deficient number, since it is larger than the sum of its proper divisors (102394753).

225711207 is a wasteful number, since it uses less digits than its factorization.

225711207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159902 (or 159899 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 225711207 is about 15023.6881956462. The cubic root of 225711207 is about 608.8603706516.

Adding to 225711207 its reverse (702117522), we get a palindrome (927828729).

The spelling of 225711207 in words is "two hundred twenty-five million, seven hundred eleven thousand, two hundred seven".