20601259 has 8 divisors (see below), whose sum is σ = 23988960. Its totient is φ = 17324736.

The previous prime is 20601247. The next prime is 20601271. The reversal of 20601259 is 95210602.

It is an interprime number because it is at equal distance from previous prime (20601247) and next prime (20601271).

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 20601259 - 2¹⁷ = 20470187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20641259) 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, 27394 + ... + 28135.

It is an arithmetic number, because the mean of its divisors is an integer number (2998620).

Almost surely, 2^20601259 is an apocalyptic number.

20601259 is a deficient number, since it is larger than the sum of its proper divisors (3387701).

20601259 is an equidigital number, since it uses as much as digits as its factorization.

20601259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55589.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 20601259 is about 4538.8609804664. The cubic root of 20601259 is about 274.1350631474.

The spelling of 20601259 in words is "twenty million, six hundred one thousand, two hundred fifty-nine".