20541733 has 2 divisors, whose sum is σ = 20541734. Its totient is φ = 20541732.

The previous prime is 20541707. The next prime is 20541739. The reversal of 20541733 is 33714502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16144324 + 4397409 = 4018^2 + 2097^2 .

It is a cyclic number.

It is not a de Polignac number, because 20541733 - 2⁵ = 20541701 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20541698 and 20541707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20541739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10270866 + 10270867.

It is an arithmetic number, because the mean of its divisors is an integer number (10270867).

Almost surely, 2^20541733 is an apocalyptic number.

It is an amenable number.

20541733 is a deficient number, since it is larger than the sum of its proper divisors (1).

20541733 is an equidigital number, since it uses as much as digits as its factorization.

20541733 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 20541733 is about 4532.2988648146. The cubic root of 20541733 is about 273.8707766168.

The spelling of 20541733 in words is "twenty million, five hundred forty-one thousand, seven hundred thirty-three".