20020753 has 2 divisors, whose sum is σ = 20020754. Its totient is φ = 20020752.

The previous prime is 20020723. The next prime is 20020799. The reversal of 20020753 is 35702002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15233409 + 4787344 = 3903^2 + 2188^2 .

It is a cyclic number.

It is not a de Polignac number, because 20020753 - 2¹³ = 20012561 is a prime.

It is a super-3 number, since 3×20020753³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20020753.

It is not a weakly prime, because it can be changed into another prime (20020723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010376 + 10010377.

It is an arithmetic number, because the mean of its divisors is an integer number (10010377).

Almost surely, 2^20020753 is an apocalyptic number.

It is an amenable number.

20020753 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020753 is an equidigital number, since it uses as much as digits as its factorization.

20020753 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 20020753 is about 4474.4556093451. The cubic root of 20020753 is about 271.5356163855.

Adding to 20020753 its reverse (35702002), we get a palindrome (55722755).

The spelling of 20020753 in words is "twenty million, twenty thousand, seven hundred fifty-three".