206113252025 has 12 divisors (see below), whose sum is σ = 257969038032. Its totient is φ = 163349565840.

The previous prime is 206113251973. The next prime is 206113252061. The reversal of 206113252025 is 520252311602.

It is not a de Polignac number, because 206113252025 - 2¹² = 206113247929 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38523167 + ... + 38528516.

It is an arithmetic number, because the mean of its divisors is an integer number (21497419836).

Almost surely, 2^206113252025 is an apocalyptic number.

206113252025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

206113252025 is a deficient number, since it is larger than the sum of its proper divisors (51855786007).

206113252025 is a wasteful number, since it uses less digits than its factorization.

206113252025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77051800 (or 77051795 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 206113252025 its reverse (520252311602), we get a palindrome (726365563627).

The spelling of 206113252025 in words is "two hundred six billion, one hundred thirteen million, two hundred fifty-two thousand, twenty-five".