205250454119 has 4 divisors (see below), whose sum is σ = 205762301040. Its totient is φ = 204738607200.

The previous prime is 205250454077. The next prime is 205250454169. The reversal of 205250454119 is 911454052502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205250454119 is a prime.

It is a super-2 number, since 2×205250454119² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205250454169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255922859 + ... + 255923660.

It is an arithmetic number, because the mean of its divisors is an integer number (51440575260).

Almost surely, 2^205250454119 is an apocalyptic number.

205250454119 is a deficient number, since it is larger than the sum of its proper divisors (511846921).

205250454119 is an equidigital number, since it uses as much as digits as its factorization.

205250454119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511846920.

The product of its (nonzero) digits is 72000, while the sum is 38.

The spelling of 205250454119 in words is "two hundred five billion, two hundred fifty million, four hundred fifty-four thousand, one hundred nineteen".