205442501 has 8 divisors (see below), whose sum is σ = 237302784. Its totient is φ = 175779520.

The previous prime is 205442477. The next prime is 205442521. The reversal of 205442501 is 105244502.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 205442501 - 2¹⁰ = 205441477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205442521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 549125 + ... + 549498.

It is an arithmetic number, because the mean of its divisors is an integer number (29662848).

Almost surely, 2^205442501 is an apocalyptic number.

It is an amenable number.

205442501 is a deficient number, since it is larger than the sum of its proper divisors (31860283).

205442501 is a wasteful number, since it uses less digits than its factorization.

205442501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098651.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 205442501 is about 14333.2655385994. The cubic root of 205442501 is about 590.0608009734.

The spelling of 205442501 in words is "two hundred five million, four hundred forty-two thousand, five hundred one".