20575005 has 32 divisors (see below), whose sum is σ = 37808640. Its totient is φ = 9449280.

The previous prime is 20574973. The next prime is 20575031. The reversal of 20575005 is 50057502.

It is not a de Polignac number, because 20575005 - 2⁵ = 20574973 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147 + ... + 6416.

It is an arithmetic number, because the mean of its divisors is an integer number (1181520).

Almost surely, 2^20575005 is an apocalyptic number.

It is an amenable number.

20575005 is a deficient number, since it is larger than the sum of its proper divisors (17233635).

20575005 is a wasteful number, since it uses less digits than its factorization.

20575005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6601.

The product of its (nonzero) digits is 1750, while the sum is 24.

The square root of 20575005 is about 4535.9679231670. The cubic root of 20575005 is about 274.0185621538.

The spelling of 20575005 in words is "twenty million, five hundred seventy-five thousand, five".