260404553 has 4 divisors (see below), whose sum is σ = 260595588. Its totient is φ = 260213520.

The previous prime is 260404549. The next prime is 260404561. The reversal of 260404553 is 355404062.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 248755984 + 11648569 = 15772^2 + 3413^2 .

It is a cyclic number.

It is not a de Polignac number, because 260404553 - 2² = 260404549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260401553) 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, 93458 + ... + 96203.

It is an arithmetic number, because the mean of its divisors is an integer number (65148897).

Almost surely, 2^260404553 is an apocalyptic number.

It is an amenable number.

260404553 is a deficient number, since it is larger than the sum of its proper divisors (191035).

260404553 is a wasteful number, since it uses less digits than its factorization.

260404553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191034.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 260404553 is about 16137.0552765986. The cubic root of 260404553 is about 638.5812918363.

The spelling of 260404553 in words is "two hundred sixty million, four hundred four thousand, five hundred fifty-three".