206532401 has 4 divisors (see below), whose sum is σ = 207848052. Its totient is φ = 205216752.

The previous prime is 206532383. The next prime is 206532463. The reversal of 206532401 is 104235602.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 135955600 + 70576801 = 11660^2 + 8401^2 .

It is a cyclic number.

It is not a de Polignac number, because 206532401 - 2¹⁸ = 206270257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206532481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 657590 + ... + 657903.

It is an arithmetic number, because the mean of its divisors is an integer number (51962013).

Almost surely, 2^206532401 is an apocalyptic number.

It is an amenable number.

206532401 is a deficient number, since it is larger than the sum of its proper divisors (1315651).

206532401 is a wasteful number, since it uses less digits than its factorization.

206532401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315650.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 206532401 is about 14371.2351939560. The cubic root of 206532401 is about 591.1024117195.

The spelling of 206532401 in words is "two hundred six million, five hundred thirty-two thousand, four hundred one".