204455311514425 has 6 divisors (see below), whose sum is σ = 253524586277918. Its totient is φ = 163564249211520.

The previous prime is 204455311514417. The next prime is 204455311514449. The reversal of 204455311514425 is 524415113554402.

It can be written as a sum of positive squares in 3 ways, for example, as 37875297712681 + 166580013801744 = 6154291^2 + 12906588^2 .

It is not a de Polignac number, because 204455311514425 - 2³ = 204455311514417 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4089106230264 + ... + 4089106230313.

Almost surely, 2^{204455311514425} is an apocalyptic number.

204455311514425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

204455311514425 is a deficient number, since it is larger than the sum of its proper divisors (49069274763493).

204455311514425 is an equidigital number, since it uses as much as digits as its factorization.

204455311514425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8178212460587 (or 8178212460582 counting only the distinct ones).

The product of its (nonzero) digits is 1920000, while the sum is 46.

The spelling of 204455311514425 in words is "two hundred four trillion, four hundred fifty-five billion, three hundred eleven million, five hundred fourteen thousand, four hundred twenty-five".