266535253 has 4 divisors (see below), whose sum is σ = 266585760. Its totient is φ = 266484748.

The previous prime is 266535229. The next prime is 266535257. The reversal of 266535253 is 352535662.

266535253 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, and also an emirpimes, since its reverse is a distinct semiprime: 352535662 = 2 ⋅176267831.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266535253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266535257) 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, 16273 + ... + 28246.

It is an arithmetic number, because the mean of its divisors is an integer number (66646440).

Almost surely, 2^266535253 is an apocalyptic number.

It is an amenable number.

266535253 is a deficient number, since it is larger than the sum of its proper divisors (50507).

266535253 is an equidigital number, since it uses as much as digits as its factorization.

266535253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50506.

The product of its digits is 162000, while the sum is 37.

The square root of 266535253 is about 16325.9074173536. The cubic root of 266535253 is about 643.5538402806.

The spelling of 266535253 in words is "two hundred sixty-six million, five hundred thirty-five thousand, two hundred fifty-three".