205047054 has 24 divisors (see below), whose sum is σ = 444922920. Its totient is φ = 68248368.

The previous prime is 205047049. The next prime is 205047061. The reversal of 205047054 is 450740502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4729 + ... + 20795.

It is an arithmetic number, because the mean of its divisors is an integer number (18538455).

Almost surely, 2^205047054 is an apocalyptic number.

205047054 is an abundant number, since it is smaller than the sum of its proper divisors (239875866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205047054 is a wasteful number, since it uses less digits than its factorization.

205047054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16784 (or 16781 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 205047054 is about 14319.4641659526. The cubic root of 205047054 is about 589.6819639971.

Adding to 205047054 its reverse (450740502), we get a palindrome (655787556).

The spelling of 205047054 in words is "two hundred five million, forty-seven thousand, fifty-four".