253565441 has 2 divisors, whose sum is σ = 253565442. Its totient is φ = 253565440.

The previous prime is 253565419. The next prime is 253565467. The reversal of 253565441 is 144565352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 243484816 + 10080625 = 15604^2 + 3175^2 .

It is a cyclic number.

It is not a de Polignac number, because 253565441 - 2²⁶ = 186456577 is a prime.

It is not a weakly prime, because it can be changed into another prime (253535441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126782720 + 126782721.

It is an arithmetic number, because the mean of its divisors is an integer number (126782721).

Almost surely, 2^253565441 is an apocalyptic number.

It is an amenable number.

253565441 is a deficient number, since it is larger than the sum of its proper divisors (1).

253565441 is an equidigital number, since it uses as much as digits as its factorization.

253565441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72000, while the sum is 35.

The square root of 253565441 is about 15923.7382859679. The cubic root of 253565441 is about 632.9411825053.

It can be divided in two parts, 2535 and 65441, that added together give a palindrome (67976).

The spelling of 253565441 in words is "two hundred fifty-three million, five hundred sixty-five thousand, four hundred forty-one".