225927949 has 4 divisors (see below), whose sum is σ = 243307036. Its totient is φ = 208548864.

The previous prime is 225927941. The next prime is 225927973. The reversal of 225927949 is 949729522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24571849 + 201356100 = 4957^2 + 14190^2 .

It is a cyclic number.

It is not a de Polignac number, because 225927949 - 2³ = 225927941 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 (225927941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8689524 + ... + 8689549.

It is an arithmetic number, because the mean of its divisors is an integer number (60826759).

Almost surely, 2^225927949 is an apocalyptic number.

It is an amenable number.

225927949 is a deficient number, since it is larger than the sum of its proper divisors (17379087).

225927949 is a wasteful number, since it uses less digits than its factorization.

225927949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17379086.

The product of its digits is 816480, while the sum is 49.

The square root of 225927949 is about 15030.8998067315. The cubic root of 225927949 is about 609.0551968902.

The spelling of 225927949 in words is "two hundred twenty-five million, nine hundred twenty-seven thousand, nine hundred forty-nine".