255030499989 has 48 divisors (see below), whose sum is σ = 395780799024. Its totient is φ = 157671014400.

The previous prime is 255030499981. The next prime is 255030500047. The reversal of 255030499989 is 989994030552.

255030499989 is a `hidden beast` number, since 2 + 5 + 50 + 3 + 0 + 499 + 98 + 9 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 18236341764 + 236794158225 = 135042^2 + 486615^2 .

It is not a de Polignac number, because 255030499989 - 2³ = 255030499981 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255030499981) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11839549 + ... + 11861069.

It is an arithmetic number, because the mean of its divisors is an integer number (8245433313).

Almost surely, 2^255030499989 is an apocalyptic number.

It is an amenable number.

255030499989 is a deficient number, since it is larger than the sum of its proper divisors (140750299035).

255030499989 is a wasteful number, since it uses less digits than its factorization.

255030499989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22678 (or 22675 counting only the distinct ones).

The product of its (nonzero) digits is 31492800, while the sum is 63.

The spelling of 255030499989 in words is "two hundred fifty-five billion, thirty million, four hundred ninety-nine thousand, nine hundred eighty-nine".