225635653 has 4 divisors (see below), whose sum is σ = 225802080. Its totient is φ = 225469228.

The previous prime is 225635633. The next prime is 225635671. The reversal of 225635653 is 356536522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 225635653 - 2⁹ = 225635141 is a prime.

It is a super-2 number, since 2×225635653² = 101822895809472818, 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 (225635603) 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, 81163 + ... + 83896.

It is an arithmetic number, because the mean of its divisors is an integer number (56450520).

Almost surely, 2^225635653 is an apocalyptic number.

It is an amenable number.

225635653 is a deficient number, since it is larger than the sum of its proper divisors (166427).

225635653 is a wasteful number, since it uses less digits than its factorization.

225635653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166426.

The product of its digits is 162000, while the sum is 37.

The square root of 225635653 is about 15021.1734894448. The cubic root of 225635653 is about 608.7924269418.

The spelling of 225635653 in words is "two hundred twenty-five million, six hundred thirty-five thousand, six hundred fifty-three".