20545735 has 8 divisors (see below), whose sum is σ = 28177056. Its totient is φ = 14088480.

The previous prime is 20545711. The next prime is 20545769. The reversal of 20545735 is 53754502.

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

It is not a de Polignac number, because 20545735 - 2⁷ = 20545607 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20545697 and 20545706.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293476 + ... + 293545.

It is an arithmetic number, because the mean of its divisors is an integer number (3522132).

Almost surely, 2^20545735 is an apocalyptic number.

20545735 is a deficient number, since it is larger than the sum of its proper divisors (7631321).

20545735 is an equidigital number, since it uses as much as digits as its factorization.

20545735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587033.

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 20545735 is about 4532.7403411182. The cubic root of 20545735 is about 273.8885608949. Note that the first 3 decimals are identical.

The spelling of 20545735 in words is "twenty million, five hundred forty-five thousand, seven hundred thirty-five".