225361215 has 24 divisors (see below), whose sum is σ = 400156848. Its totient is φ = 117260160.

The previous prime is 225361207. The next prime is 225361229. The reversal of 225361215 is 512163522.

It is a happy number.

225361215 is a `hidden beast` number, since 2 + 2 + 536 + 121 + 5 = 666.

It is not a de Polignac number, because 225361215 - 2³ = 225361207 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59229 + ... + 62918.

It is an arithmetic number, because the mean of its divisors is an integer number (16673202).

Almost surely, 2^225361215 is an apocalyptic number.

225361215 is a deficient number, since it is larger than the sum of its proper divisors (174795633).

225361215 is a wasteful number, since it uses less digits than its factorization.

225361215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122199 (or 122196 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 225361215 is about 15012.0356714204. The cubic root of 225361215 is about 608.5455044407.

The spelling of 225361215 in words is "two hundred twenty-five million, three hundred sixty-one thousand, two hundred fifteen".