267649253 has 2 divisors, whose sum is σ = 267649254. Its totient is φ = 267649252.

The previous prime is 267649223. The next prime is 267649279. The reversal of 267649253 is 352946762.

267649253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 267060964 + 588289 = 16342^2 + 767^2 .

It is a cyclic number.

It is not a de Polignac number, because 267649253 - 2¹⁰ = 267648229 is a prime.

It is a super-2 number, since 2×267649253² = 143272245262916018, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (267649223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133824626 + 133824627.

It is an arithmetic number, because the mean of its divisors is an integer number (133824627).

Almost surely, 2^267649253 is an apocalyptic number.

It is an amenable number.

267649253 is a deficient number, since it is larger than the sum of its proper divisors (1).

267649253 is an equidigital number, since it uses as much as digits as its factorization.

267649253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 44.

The square root of 267649253 is about 16359.9893948621. The cubic root of 267649253 is about 644.4491846185.

The spelling of 267649253 in words is "two hundred sixty-seven million, six hundred forty-nine thousand, two hundred fifty-three".