20275003 has 8 divisors (see below), whose sum is σ = 23247072. Its totient is φ = 17321856.

The previous prime is 20274979. The next prime is 20275007. The reversal of 20275003 is 30057202.

It is a happy number.

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 20275003 - 2⁵ = 20274971 is a prime.

It is a super-2 number, since 2×20275003² = 822151493300018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20275007) 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, 2350 + ... + 6787.

It is an arithmetic number, because the mean of its divisors is an integer number (2905884).

Almost surely, 2^20275003 is an apocalyptic number.

20275003 is a deficient number, since it is larger than the sum of its proper divisors (2972069).

20275003 is an equidigital number, since it uses as much as digits as its factorization.

20275003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9461.

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 20275003 is about 4502.7772540955. Note that the first 3 decimals coincide. The cubic root of 20275003 is about 272.6802241837.

The spelling of 20275003 in words is "twenty million, two hundred seventy-five thousand, three".