225123613 has 16 divisors (see below), whose sum is σ = 266970816. Its totient is φ = 187136640.

The previous prime is 225123601. The next prime is 225123617. The reversal of 225123613 is 316321522.

It is a cyclic number.

It is not a de Polignac number, because 225123613 - 2¹⁷ = 224992541 is a prime.

It is a super-2 number, since 2×225123613² = 101361282260347538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225123617) 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, 7945 + ... + 22657.

It is an arithmetic number, because the mean of its divisors is an integer number (16685676).

Almost surely, 2^225123613 is an apocalyptic number.

It is an amenable number.

225123613 is a deficient number, since it is larger than the sum of its proper divisors (41847203).

225123613 is a wasteful number, since it uses less digits than its factorization.

225123613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14844.

The product of its digits is 2160, while the sum is 25.

The square root of 225123613 is about 15004.1198675564. The cubic root of 225123613 is about 608.3315627563.

The spelling of 225123613 in words is "two hundred twenty-five million, one hundred twenty-three thousand, six hundred thirteen".