204896465025 has 48 divisors (see below), whose sum is σ = 407533440000. Its totient is φ = 88737111360.

The previous prime is 204896465021. The next prime is 204896465069. The reversal of 204896465025 is 520564698402.

It is not a de Polignac number, because 204896465025 - 2² = 204896465021 is a prime.

It is a super-2 number, since 2×204896465025² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (204896465021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10260525 + ... + 10280474.

It is an arithmetic number, because the mean of its divisors is an integer number (8490280000).

Almost surely, 2^204896465025 is an apocalyptic number.

204896465025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

204896465025 is a deficient number, since it is larger than the sum of its proper divisors (202636974975).

204896465025 is a wasteful number, since it uses less digits than its factorization.

204896465025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20541038 (or 20541033 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 51.

The spelling of 204896465025 in words is "two hundred four billion, eight hundred ninety-six million, four hundred sixty-five thousand, twenty-five".