205525375151 has 4 divisors (see below), whose sum is σ = 209403212472. Its totient is φ = 201647537832.

The previous prime is 205525375093. The next prime is 205525375157. The reversal of 205525375151 is 151573525502.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205525375151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 205525375099 and 205525375108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205525375157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1938918581 + ... + 1938918686.

It is an arithmetic number, because the mean of its divisors is an integer number (52350803118).

Almost surely, 2^205525375151 is an apocalyptic number.

205525375151 is a deficient number, since it is larger than the sum of its proper divisors (3877837321).

205525375151 is an equidigital number, since it uses as much as digits as its factorization.

205525375151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3877837320.

The product of its (nonzero) digits is 262500, while the sum is 41.

The spelling of 205525375151 in words is "two hundred five billion, five hundred twenty-five million, three hundred seventy-five thousand, one hundred fifty-one".