205550013451 has 2 divisors, whose sum is σ = 205550013452. Its totient is φ = 205550013450.

The previous prime is 205550013439. The next prime is 205550013463. The reversal of 205550013451 is 154310055502.

It is a balanced prime because it is at equal distance from previous prime (205550013439) and next prime (205550013463).

It is a cyclic number.

It is not a de Polignac number, because 205550013451 - 2⁹ = 205550012939 is a prime.

It is not a weakly prime, because it can be changed into another prime (205550010451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102775006725 + 102775006726.

It is an arithmetic number, because the mean of its divisors is an integer number (102775006726).

Almost surely, 2^205550013451 is an apocalyptic number.

205550013451 is a deficient number, since it is larger than the sum of its proper divisors (1).

205550013451 is an equidigital number, since it uses as much as digits as its factorization.

205550013451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15000, while the sum is 31.

Adding to 205550013451 its reverse (154310055502), we get a palindrome (359860068953).

The spelling of 205550013451 in words is "two hundred five billion, five hundred fifty million, thirteen thousand, four hundred fifty-one".