204555415425 has 24 divisors (see below), whose sum is σ = 338517172800. Its totient is φ = 108993355200.

The previous prime is 204555415423. The next prime is 204555415457. The reversal of 204555415425 is 524514555402.

It is not a de Polignac number, because 204555415425 - 2¹ = 204555415423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204555415423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1205725 + ... + 1364874.

It is an arithmetic number, because the mean of its divisors is an integer number (14104882200).

Almost surely, 2^204555415425 is an apocalyptic number.

204555415425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

204555415425 is a deficient number, since it is larger than the sum of its proper divisors (133961757375).

204555415425 is a wasteful number, since it uses less digits than its factorization.

204555415425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2571673 (or 2571668 counting only the distinct ones).

The product of its (nonzero) digits is 800000, while the sum is 42.

The spelling of 204555415425 in words is "two hundred four billion, five hundred fifty-five million, four hundred fifteen thousand, four hundred twenty-five".