265452661 has 2 divisors, whose sum is σ = 265452662. Its totient is φ = 265452660.

The previous prime is 265452647. The next prime is 265452703. The reversal of 265452661 is 166254562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 171479025 + 93973636 = 13095^2 + 9694^2 .

It is a cyclic number.

It is not a de Polignac number, because 265452661 - 2⁷ = 265452533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 265452661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265452611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132726330 + 132726331.

It is an arithmetic number, because the mean of its divisors is an integer number (132726331).

Almost surely, 2^265452661 is an apocalyptic number.

It is an amenable number.

265452661 is a deficient number, since it is larger than the sum of its proper divisors (1).

265452661 is an equidigital number, since it uses as much as digits as its factorization.

265452661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 37.

The square root of 265452661 is about 16292.7180359816. The cubic root of 265452661 is about 642.6813457530.

The spelling of 265452661 in words is "two hundred sixty-five million, four hundred fifty-two thousand, six hundred sixty-one".