20875003 has 8 divisors (see below), whose sum is σ = 21385728. Its totient is φ = 20367144.

The previous prime is 20874979. The next prime is 20875009. The reversal of 20875003 is 30057802.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20875003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20875009) 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, 23200 + ... + 24082.

It is an arithmetic number, because the mean of its divisors is an integer number (2673216).

Almost surely, 2^20875003 is an apocalyptic number.

20875003 is a deficient number, since it is larger than the sum of its proper divisors (510725).

20875003 is an equidigital number, since it uses as much as digits as its factorization.

20875003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 20875003 is about 4568.9170489296. The cubic root of 20875003 is about 275.3439355095.

The spelling of 20875003 in words is "twenty million, eight hundred seventy-five thousand, three".