225992539 has 4 divisors (see below), whose sum is σ = 226045800. Its totient is φ = 225939280.

The previous prime is 225992531. The next prime is 225992561. The reversal of 225992539 is 935299522.

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

It is a cyclic number.

It is not a de Polignac number, because 225992539 - 2³ = 225992531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225992531) 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, 19657 + ... + 28954.

It is an arithmetic number, because the mean of its divisors is an integer number (56511450).

Almost surely, 2^225992539 is an apocalyptic number.

225992539 is a deficient number, since it is larger than the sum of its proper divisors (53261).

225992539 is an equidigital number, since it uses as much as digits as its factorization.

225992539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53260.

The product of its digits is 437400, while the sum is 46.

The square root of 225992539 is about 15033.0482271561. The cubic root of 225992539 is about 609.1132318037.

The spelling of 225992539 in words is "two hundred twenty-five million, nine hundred ninety-two thousand, five hundred thirty-nine".