204511442625403 has 4 divisors (see below), whose sum is σ = 204511478110488. Its totient is φ = 204511407140320.

The previous prime is 204511442625353. The next prime is 204511442625433. The reversal of 204511442625403 is 304526244115402.

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-204511442625403 is a prime.

It is a super-2 number, since 2×204511442625403² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204511442625403.

It is not an unprimeable number, because it can be changed into a prime (204511442625433) 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, 6881326 + ... + 21362947.

It is an arithmetic number, because the mean of its divisors is an integer number (51127869527622).

Almost surely, 2^{204511442625403} is an apocalyptic number.

204511442625403 is a deficient number, since it is larger than the sum of its proper divisors (35485085).

204511442625403 is an equidigital number, since it uses as much as digits as its factorization.

204511442625403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35485084.

The product of its (nonzero) digits is 921600, while the sum is 43.

The spelling of 204511442625403 in words is "two hundred four trillion, five hundred eleven billion, four hundred forty-two million, six hundred twenty-five thousand, four hundred three".