205052451 has 8 divisors (see below), whose sum is σ = 273472080. Its totient is φ = 136667232.

The previous prime is 205052447. The next prime is 205052467. The reversal of 205052451 is 154250502.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 205052451 - 2² = 205052447 is a prime.

It is a super-2 number, since 2×205052451² = 84093015322214802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (205052411) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13201 + ... + 24173.

It is an arithmetic number, because the mean of its divisors is an integer number (34184010).

Almost surely, 2^205052451 is an apocalyptic number.

205052451 is a deficient number, since it is larger than the sum of its proper divisors (68419629).

205052451 is a wasteful number, since it uses less digits than its factorization.

205052451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17205.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 205052451 is about 14319.6526145015. The cubic root of 205052451 is about 589.6871375830.

The spelling of 205052451 in words is "two hundred five million, fifty-two thousand, four hundred fifty-one".