205145552 has 20 divisors (see below), whose sum is σ = 398757216. Its totient is φ = 102240480.

The previous prime is 205145543. The next prime is 205145557. The reversal of 205145552 is 255541502.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205145557) 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, 15638 + ... + 25589.

Almost surely, 2^205145552 is an apocalyptic number.

It is an amenable number.

205145552 is a deficient number, since it is larger than the sum of its proper divisors (193611664).

205145552 is a wasteful number, since it uses less digits than its factorization.

205145552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41546 (or 41540 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 205145552 is about 14322.9030576905. The cubic root of 205145552 is about 589.7763702892.

The spelling of 205145552 in words is "two hundred five million, one hundred forty-five thousand, five hundred fifty-two".