225616533 has 4 divisors (see below), whose sum is σ = 300822048. Its totient is φ = 150411020.

The previous prime is 225616519. The next prime is 225616541. The reversal of 225616533 is 335616522.

225616533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 225616533 - 2¹² = 225612437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225616494 and 225616503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225616033) 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, 37602753 + ... + 37602758.

It is an arithmetic number, because the mean of its divisors is an integer number (75205512).

Almost surely, 2^225616533 is an apocalyptic number.

It is an amenable number.

225616533 is a deficient number, since it is larger than the sum of its proper divisors (75205515).

225616533 is an equidigital number, since it uses as much as digits as its factorization.

225616533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75205514.

The product of its digits is 32400, while the sum is 33.

The square root of 225616533 is about 15020.5370409982. The cubic root of 225616533 is about 608.7752304278.

The spelling of 225616533 in words is "two hundred twenty-five million, six hundred sixteen thousand, five hundred thirty-three".