205252020541 has 8 divisors (see below), whose sum is σ = 205465581440. Its totient is φ = 205038516672.

The previous prime is 205252020487. The next prime is 205252020553. The reversal of 205252020541 is 145020252502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 205252020541 - 2³¹ = 203104536893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205253020541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12909925 + ... + 12925813.

It is an arithmetic number, because the mean of its divisors is an integer number (25683197680).

Almost surely, 2^205252020541 is an apocalyptic number.

It is an amenable number.

205252020541 is a deficient number, since it is larger than the sum of its proper divisors (213560899).

205252020541 is a wasteful number, since it uses less digits than its factorization.

205252020541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28515.

The product of its (nonzero) digits is 8000, while the sum is 28.

The spelling of 205252020541 in words is "two hundred five billion, two hundred fifty-two million, twenty thousand, five hundred forty-one".