205015110225 has 48 divisors (see below), whose sum is σ = 348283220352. Its totient is φ = 106336143360.

The previous prime is 205015110199. The next prime is 205015110233. The reversal of 205015110225 is 522011510502.

It is not a de Polignac number, because 205015110225 - 2³² = 200720142929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 205015110195 and 205015110204.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6291324 + ... + 6323826.

It is an arithmetic number, because the mean of its divisors is an integer number (7255900424).

Almost surely, 2^205015110225 is an apocalyptic number.

205015110225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

205015110225 is a deficient number, since it is larger than the sum of its proper divisors (143268110127).

205015110225 is a wasteful number, since it uses less digits than its factorization.

205015110225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34826 (or 34821 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 24.

Adding to 205015110225 its reverse (522011510502), we get a palindrome (727026620727).

The spelling of 205015110225 in words is "two hundred five billion, fifteen million, one hundred ten thousand, two hundred twenty-five".