20535049 has 2 divisors, whose sum is σ = 20535050. Its totient is φ = 20535048.

The previous prime is 20535043. The next prime is 20535061. The reversal of 20535049 is 94053502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10725625 + 9809424 = 3275^2 + 3132^2 .

It is a cyclic number.

It is not a de Polignac number, because 20535049 - 2¹¹ = 20533001 is a prime.

It is not a weakly prime, because it can be changed into another prime (20535043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10267524 + 10267525.

It is an arithmetic number, because the mean of its divisors is an integer number (10267525).

Almost surely, 2^20535049 is an apocalyptic number.

It is an amenable number.

20535049 is a deficient number, since it is larger than the sum of its proper divisors (1).

20535049 is an equidigital number, since it uses as much as digits as its factorization.

20535049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 20535049 is about 4531.5614306771. The cubic root of 20535049 is about 273.8410687881.

The spelling of 20535049 in words is "twenty million, five hundred thirty-five thousand, forty-nine".