205055542 has 4 divisors (see below), whose sum is σ = 307583316. Its totient is φ = 102527770.

The previous prime is 205055537. The next prime is 205055561. The reversal of 205055542 is 245550502.

205055542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 205055542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51263884 + ... + 51263887.

It is an arithmetic number, because the mean of its divisors is an integer number (76895829).

Almost surely, 2^205055542 is an apocalyptic number.

205055542 is a deficient number, since it is larger than the sum of its proper divisors (102527774).

205055542 is a wasteful number, since it uses less digits than its factorization.

205055542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102527773.

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 205055542 is about 14319.7605426906. The cubic root of 205055542 is about 589.6901005871.

The spelling of 205055542 in words is "two hundred five million, fifty-five thousand, five hundred forty-two".