204221550024125 has 16 divisors (see below), whose sum is σ = 263657063208240. Its totient is φ = 157743542084800.

The previous prime is 204221550024119. The next prime is 204221550024133. The reversal of 204221550024125 is 521420055122402.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 72536239946041 + 131685310078084 = 8516821^2 + 11475422^2 .

It is not a de Polignac number, because 204221550024125 - 2⁴ = 204221550024109 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28168486034 + ... + 28168493283.

It is an arithmetic number, because the mean of its divisors is an integer number (16478566450515).

Almost surely, 2^{204221550024125} is an apocalyptic number.

204221550024125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

204221550024125 is a deficient number, since it is larger than the sum of its proper divisors (59435513184115).

204221550024125 is an equidigital number, since it uses as much as digits as its factorization.

204221550024125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56336979361 (or 56336979351 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 35.

The spelling of 204221550024125 in words is "two hundred four trillion, two hundred twenty-one billion, five hundred fifty million, twenty-four thousand, one hundred twenty-five".