265622225 has 36 divisors (see below), whose sum is σ = 364489692. Its totient is φ = 191875200.

The previous prime is 265622197. The next prime is 265622249. The reversal of 265622225 is 522226562.

It can be written as a sum of positive squares in 6 ways, for example, as 83156161 + 182466064 = 9119^2 + 13508^2 .

It is a de Polignac number, because none of the positive numbers 2^k-265622225 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 265622191 and 265622200.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 837767 + ... + 838083.

Almost surely, 2^265622225 is an apocalyptic number.

265622225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

265622225 is a deficient number, since it is larger than the sum of its proper divisors (98867467).

265622225 is a wasteful number, since it uses less digits than its factorization.

265622225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626 (or 610 counting only the distinct ones).

The product of its digits is 28800, while the sum is 32.

The square root of 265622225 is about 16297.9208796705. The cubic root of 265622225 is about 642.8181591293.

Adding to 265622225 its reverse (522226562), we get a palindrome (787848787).

The spelling of 265622225 in words is "two hundred sixty-five million, six hundred twenty-two thousand, two hundred twenty-five".