205355300540531 has 16 divisors (see below), whose sum is σ = 207478769608800. Its totient is φ = 203233616064000.

The previous prime is 205355300540501. The next prime is 205355300540567. The reversal of 205355300540531 is 135045003553502.

205355300540531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205355300540531 is a prime.

It is a super-2 number, since 2×205355300540531² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205355300540501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3357148715 + ... + 3357209883.

It is an arithmetic number, because the mean of its divisors is an integer number (12967423100550).

Almost surely, 2^{205355300540531} is an apocalyptic number.

205355300540531 is a deficient number, since it is larger than the sum of its proper divisors (2123469068269).

205355300540531 is a wasteful number, since it uses less digits than its factorization.

205355300540531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75190.

The product of its (nonzero) digits is 675000, while the sum is 41.

The spelling of 205355300540531 in words is "two hundred five trillion, three hundred fifty-five billion, three hundred million, five hundred forty thousand, five hundred thirty-one".