206331320525 has 24 divisors (see below), whose sum is σ = 281416744128. Its totient is φ = 150059118000.

The previous prime is 206331320501. The next prime is 206331320537. The reversal of 206331320525 is 525023133602.

It is not a de Polignac number, because 206331320525 - 2¹⁶ = 206331254989 is a prime.

It is a super-2 number, since 2×206331320525² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 206331320491 and 206331320500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3067121 + ... + 3133670.

It is an arithmetic number, because the mean of its divisors is an integer number (11725697672).

Almost surely, 2^206331320525 is an apocalyptic number.

206331320525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

206331320525 is a deficient number, since it is larger than the sum of its proper divisors (75085423603).

206331320525 is an equidigital number, since it uses as much as digits as its factorization.

206331320525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6200834 (or 6200807 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 32.

The spelling of 206331320525 in words is "two hundred six billion, three hundred thirty-one million, three hundred twenty thousand, five hundred twenty-five".