255426487 has 2 divisors, whose sum is σ = 255426488. Its totient is φ = 255426486.

The previous prime is 255426473. The next prime is 255426491. The reversal of 255426487 is 784624552.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255426487 is a prime.

It is a super-2 number, since 2×255426487² = 130485380522322338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255486487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127713243 + 127713244.

It is an arithmetic number, because the mean of its divisors is an integer number (127713244).

Almost surely, 2^255426487 is an apocalyptic number.

255426487 is a deficient number, since it is larger than the sum of its proper divisors (1).

255426487 is an equidigital number, since it uses as much as digits as its factorization.

255426487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 537600, while the sum is 43.

The square root of 255426487 is about 15982.0676697354. The cubic root of 255426487 is about 634.4859021231.

The spelling of 255426487 in words is "two hundred fifty-five million, four hundred twenty-six thousand, four hundred eighty-seven".