20274503 has 2 divisors, whose sum is σ = 20274504. Its totient is φ = 20274502.

The previous prime is 20274487. The next prime is 20274511. The reversal of 20274503 is 30547202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20274503 - 2⁴ = 20274487 is a prime.

It is a super-2 number, since 2×20274503² = 822110943794018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20274533) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10137251 + 10137252.

It is an arithmetic number, because the mean of its divisors is an integer number (10137252).

Almost surely, 2^20274503 is an apocalyptic number.

20274503 is a deficient number, since it is larger than the sum of its proper divisors (1).

20274503 is an equidigital number, since it uses as much as digits as its factorization.

20274503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 20274503 is about 4502.7217324636. The cubic root of 20274503 is about 272.6779826513.

The spelling of 20274503 in words is "twenty million, two hundred seventy-four thousand, five hundred three".