260042551 has 2 divisors, whose sum is σ = 260042552. Its totient is φ = 260042550.

The previous prime is 260042521. The next prime is 260042581. The reversal of 260042551 is 155240062.

It is a balanced prime because it is at equal distance from previous prime (260042521) and next prime (260042581).

It is a cyclic number.

It is not a de Polignac number, because 260042551 - 2⁷ = 260042423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260042521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130021275 + 130021276.

It is an arithmetic number, because the mean of its divisors is an integer number (130021276).

Almost surely, 2^260042551 is an apocalyptic number.

260042551 is a deficient number, since it is larger than the sum of its proper divisors (1).

260042551 is an equidigital number, since it uses as much as digits as its factorization.

260042551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 260042551 is about 16125.8348931148. The cubic root of 260042551 is about 638.2852461842.

The spelling of 260042551 in words is "two hundred sixty million, forty-two thousand, five hundred fifty-one".