20575801 has 8 divisors (see below), whose sum is σ = 21504384. Its totient is φ = 19667760.

The previous prime is 20575769. The next prime is 20575817. The reversal of 20575801 is 10857502.

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 20575801 - 2⁵ = 20575769 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 20575801.

It is not an unprimeable number, because it can be changed into a prime (20575201) 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, 3070 + ... + 7111.

It is an arithmetic number, because the mean of its divisors is an integer number (2688048).

Almost surely, 2^20575801 is an apocalyptic number.

It is an amenable number.

20575801 is a deficient number, since it is larger than the sum of its proper divisors (928583).

20575801 is a wasteful number, since it uses less digits than its factorization.

20575801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10271.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 20575801 is about 4536.0556654433. The cubic root of 20575801 is about 274.0220958259.

The spelling of 20575801 in words is "twenty million, five hundred seventy-five thousand, eight hundred one".