255089591 has 2 divisors, whose sum is σ = 255089592. Its totient is φ = 255089590.

The previous prime is 255089567. The next prime is 255089651. The reversal of 255089591 is 195980552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255089591 - 2¹⁴ = 255073207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255089531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127544795 + 127544796.

It is an arithmetic number, because the mean of its divisors is an integer number (127544796).

Almost surely, 2^255089591 is an apocalyptic number.

255089591 is a deficient number, since it is larger than the sum of its proper divisors (1).

255089591 is an equidigital number, since it uses as much as digits as its factorization.

255089591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162000, while the sum is 44.

The square root of 255089591 is about 15971.5243793446. The cubic root of 255089591 is about 634.2068266417.

The spelling of 255089591 in words is "two hundred fifty-five million, eighty-nine thousand, five hundred ninety-one".