260800551 has 24 divisors (see below), whose sum is σ = 424220160. Its totient is φ = 152960400.

The previous prime is 260800541. The next prime is 260800571. The reversal of 260800551 is 155008062.

260800551 is a `hidden beast` number, since 2 + 608 + 0 + 0 + 5 + 51 = 666.

It is not a de Polignac number, because 260800551 - 2⁶ = 260800487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260800541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39421 + ... + 45558.

It is an arithmetic number, because the mean of its divisors is an integer number (17675840).

Almost surely, 2^260800551 is an apocalyptic number.

260800551 is a deficient number, since it is larger than the sum of its proper divisors (163419609).

260800551 is a wasteful number, since it uses less digits than its factorization.

260800551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85027 (or 85024 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 260800551 is about 16149.3204500994. The cubic root of 260800551 is about 638.9048253999.

The spelling of 260800551 in words is "two hundred sixty million, eight hundred thousand, five hundred fifty-one".