255513499 has 2 divisors, whose sum is σ = 255513500. Its totient is φ = 255513498.

The previous prime is 255513493. The next prime is 255513529. The reversal of 255513499 is 994315552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255513499 - 2³ = 255513491 is a prime.

It is not a weakly prime, because it can be changed into another prime (255513491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127756749 + 127756750.

It is an arithmetic number, because the mean of its divisors is an integer number (127756750).

Almost surely, 2^255513499 is an apocalyptic number.

255513499 is a deficient number, since it is larger than the sum of its proper divisors (1).

255513499 is an equidigital number, since it uses as much as digits as its factorization.

255513499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 243000, while the sum is 43.

The square root of 255513499 is about 15984.7896138798. The cubic root of 255513499 is about 634.5579406187.

The spelling of 255513499 in words is "two hundred fifty-five million, five hundred thirteen thousand, four hundred ninety-nine".