259900054499 has 4 divisors (see below), whose sum is σ = 259901121480. Its totient is φ = 259898987520.

The previous prime is 259900054493. The next prime is 259900054507. The reversal of 259900054499 is 994450009952.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-259900054499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (259900054493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30947 + ... + 721635.

It is an arithmetic number, because the mean of its divisors is an integer number (64975280370).

Almost surely, 2^259900054499 is an apocalyptic number.

259900054499 is a deficient number, since it is larger than the sum of its proper divisors (1066981).

259900054499 is an equidigital number, since it uses as much as digits as its factorization.

259900054499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066980.

The product of its (nonzero) digits is 5248800, while the sum is 56.

The spelling of 259900054499 in words is "two hundred fifty-nine billion, nine hundred million, fifty-four thousand, four hundred ninety-nine".