225698539 has 16 divisors (see below), whose sum is σ = 253412064. Its totient is φ = 199264000.

The previous prime is 225698519. The next prime is 225698593. The reversal of 225698539 is 935896522.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 225698539 - 2²¹ = 223601387 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225698492 and 225698501.

It is not an unprimeable number, because it can be changed into a prime (225698509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56967 + ... + 60799.

It is an arithmetic number, because the mean of its divisors is an integer number (15838254).

Almost surely, 2^225698539 is an apocalyptic number.

225698539 is a deficient number, since it is larger than the sum of its proper divisors (27713525).

225698539 is a wasteful number, since it uses less digits than its factorization.

225698539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3998.

The product of its digits is 1166400, while the sum is 49.

The square root of 225698539 is about 15023.2665888614. The cubic root of 225698539 is about 608.8489797130.

The spelling of 225698539 in words is "two hundred twenty-five million, six hundred ninety-eight thousand, five hundred thirty-nine".