225747387 has 6 divisors (see below), whose sum is σ = 326079572. Its totient is φ = 150498252.

The previous prime is 225747373. The next prime is 225747407. The reversal of 225747387 is 783747522.

225747387 is a `hidden beast` number, since 2 + 2 + 574 + 73 + 8 + 7 = 666.

It is not a de Polignac number, because 225747387 - 2⁴ = 225747371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225747307) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12541513 + ... + 12541530.

Almost surely, 2^225747387 is an apocalyptic number.

225747387 is a deficient number, since it is larger than the sum of its proper divisors (100332185).

225747387 is a wasteful number, since it uses less digits than its factorization.

225747387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25083049 (or 25083046 counting only the distinct ones).

The product of its digits is 658560, while the sum is 45.

The square root of 225747387 is about 15024.8922458699. The cubic root of 225747387 is about 608.8929009981.

The spelling of 225747387 in words is "two hundred twenty-five million, seven hundred forty-seven thousand, three hundred eighty-seven".