265720226 has 8 divisors (see below), whose sum is σ = 398652240. Its totient is φ = 132836148.

The previous prime is 265720223. The next prime is 265720229. The reversal of 265720226 is 622027562.

It is an interprime number because it is at equal distance from previous prime (265720223) and next prime (265720229).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 265720192 and 265720201.

It is not an unprimeable number, because it can be changed into a prime (265720223) 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, 9785 + ... + 25043.

It is an arithmetic number, because the mean of its divisors is an integer number (49831530).

Almost surely, 2^265720226 is an apocalyptic number.

265720226 is a deficient number, since it is larger than the sum of its proper divisors (132932014).

265720226 is a wasteful number, since it uses less digits than its factorization.

265720226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23968.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 265720226 is about 16300.9271515457. The cubic root of 265720226 is about 642.8972050706.

Adding to 265720226 its reverse (622027562), we get a palindrome (887747788).

The spelling of 265720226 in words is "two hundred sixty-five million, seven hundred twenty thousand, two hundred twenty-six".