255011899 has 2 divisors, whose sum is σ = 255011900. Its totient is φ = 255011898.

The previous prime is 255011891. The next prime is 255011929. The reversal of 255011899 is 998110552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255011899 - 2³ = 255011891 is a prime.

It is not a weakly prime, because it can be changed into another prime (255011891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127505949 + 127505950.

It is an arithmetic number, because the mean of its divisors is an integer number (127505950).

Almost surely, 2^255011899 is an apocalyptic number.

255011899 is a deficient number, since it is larger than the sum of its proper divisors (1).

255011899 is an equidigital number, since it uses as much as digits as its factorization.

255011899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 40.

The square root of 255011899 is about 15969.0919904671. The cubic root of 255011899 is about 634.1424338406.

The spelling of 255011899 in words is "two hundred fifty-five million, eleven thousand, eight hundred ninety-nine".