260540253 has 8 divisors (see below), whose sum is σ = 385985600. Its totient is φ = 173693484.

The previous prime is 260540243. The next prime is 260540279. The reversal of 260540253 is 352045062.

260540253 is a `hidden beast` number, since 2 + 605 + 4 + 0 + 2 + 53 = 666.

It is not a de Polignac number, because 260540253 - 2²⁰ = 259491677 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 9649639 = 260540253 / (2 + 6 + 0 + 5 + 4 + 0 + 2 + 5 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260540243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4824793 + ... + 4824846.

It is an arithmetic number, because the mean of its divisors is an integer number (48248200).

Almost surely, 2^260540253 is an apocalyptic number.

It is an amenable number.

260540253 is a deficient number, since it is larger than the sum of its proper divisors (125445347).

260540253 is an equidigital number, since it uses as much as digits as its factorization.

260540253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9649648 (or 9649642 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 260540253 is about 16141.2593374867. The cubic root of 260540253 is about 638.6921967497.

The spelling of 260540253 in words is "two hundred sixty million, five hundred forty thousand, two hundred fifty-three".