20475383 has 2 divisors, whose sum is σ = 20475384. Its totient is φ = 20475382.

The previous prime is 20475373. The next prime is 20475491. The reversal of 20475383 is 38357402.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20475383 - 2¹⁰ = 20474359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20475373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10237691 + 10237692.

It is an arithmetic number, because the mean of its divisors is an integer number (10237692).

Almost surely, 2^20475383 is an apocalyptic number.

20475383 is a deficient number, since it is larger than the sum of its proper divisors (1).

20475383 is an equidigital number, since it uses as much as digits as its factorization.

20475383 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 20475383 is about 4524.9732595895. The cubic root of 20475383 is about 273.5755901342.

The spelling of 20475383 in words is "twenty million, four hundred seventy-five thousand, three hundred eighty-three".