205432653 has 8 divisors (see below), whose sum is σ = 277998688. Its totient is φ = 134910864.

The previous prime is 205432651. The next prime is 205432657. The reversal of 205432653 is 356234502.

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

It is not a de Polignac number, because 205432653 - 2¹ = 205432651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 205432653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205432651) 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, 510826 + ... + 511227.

It is an arithmetic number, because the mean of its divisors is an integer number (34749836).

Almost surely, 2^205432653 is an apocalyptic number.

It is an amenable number.

205432653 is a deficient number, since it is larger than the sum of its proper divisors (72566035).

205432653 is a wasteful number, since it uses less digits than its factorization.

205432653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022123.

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 205432653 is about 14332.9219979738. The cubic root of 205432653 is about 590.0513725257.

The spelling of 205432653 in words is "two hundred five million, four hundred thirty-two thousand, six hundred fifty-three".