205152225547 has 2 divisors, whose sum is σ = 205152225548. Its totient is φ = 205152225546.

The previous prime is 205152225521. The next prime is 205152225557. The reversal of 205152225547 is 745522251502.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205152225547 is a prime.

It is not a weakly prime, because it can be changed into another prime (205152225557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102576112773 + 102576112774.

It is an arithmetic number, because the mean of its divisors is an integer number (102576112774).

Almost surely, 2^205152225547 is an apocalyptic number.

205152225547 is a deficient number, since it is larger than the sum of its proper divisors (1).

205152225547 is an equidigital number, since it uses as much as digits as its factorization.

205152225547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280000, while the sum is 40.

The spelling of 205152225547 in words is "two hundred five billion, one hundred fifty-two million, two hundred twenty-five thousand, five hundred forty-seven".