204150554 has 24 divisors (see below), whose sum is σ = 325430388. Its totient is φ = 96033600.

The previous prime is 204150547. The next prime is 204150577. The reversal of 204150554 is 455051402.

It can be written as a sum of positive squares in 2 ways, for example, as 184552225 + 19598329 = 13585^2 + 4427^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112454 + ... + 114254.

Almost surely, 2^204150554 is an apocalyptic number.

204150554 is a deficient number, since it is larger than the sum of its proper divisors (121279834).

204150554 is a wasteful number, since it uses less digits than its factorization.

204150554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998 (or 1979 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 204150554 is about 14288.1263292288. The cubic root of 204150554 is about 588.8213124282.

The spelling of 204150554 in words is "two hundred four million, one hundred fifty thousand, five hundred fifty-four".