260551 has 2 divisors, whose sum is σ = 260552. Its totient is φ = 260550.
The previous prime is 260549. The next prime is 260569. The reversal of 260551 is 155062.
It is a happy number.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 260551 - 21 = 260549 is a prime.
Together with 260549, it forms a pair of twin primes.
It is a Chen prime.
It is a zygodrome in base 2.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (260581) 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 as a sum of consecutive naturals, namely, 130275 + 130276.
It is an arithmetic number, because the mean of its divisors is an integer number (130276).
2260551 is an apocalyptic number.
260551 is a deficient number, since it is larger than the sum of its proper divisors (1).
260551 is an equidigital number, since it uses as much as digits as its factorization.
260551 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 300, while the sum is 19.
The square root of 260551 is about 510.4419653594. The cubic root of 260551 is about 63.8700978413.
The spelling of 260551 in words is "two hundred sixty thousand, five hundred fifty-one".
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