225266761 has 4 divisors (see below), whose sum is σ = 235060992. Its totient is φ = 215472532.

The previous prime is 225266753. The next prime is 225266773. The reversal of 225266761 is 167662522.

225266761 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 225266761 - 2³ = 225266753 is a prime.

It is a super-2 number, since 2×225266761² = 101490227222862242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225266761.

It is not an unprimeable number, because it can be changed into a prime (225266861) 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, 4897081 + ... + 4897126.

It is an arithmetic number, because the mean of its divisors is an integer number (58765248).

Almost surely, 2^225266761 is an apocalyptic number.

It is an amenable number.

225266761 is a deficient number, since it is larger than the sum of its proper divisors (9794231).

225266761 is an equidigital number, since it uses as much as digits as its factorization.

225266761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9794230.

The product of its digits is 60480, while the sum is 37.

The square root of 225266761 is about 15008.8893992860. The cubic root of 225266761 is about 608.4604741494.

The spelling of 225266761 in words is "two hundred twenty-five million, two hundred sixty-six thousand, seven hundred sixty-one".