20024440453 has 2 divisors, whose sum is σ = 20024440454. Its totient is φ = 20024440452.

The previous prime is 20024440439. The next prime is 20024440489. The reversal of 20024440453 is 35404442002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16838176644 + 3186263809 = 129762^2 + 56447^2 .

It is a cyclic number.

It is not a de Polignac number, because 20024440453 - 2³³ = 11434505861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20024440433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10012220226 + 10012220227.

It is an arithmetic number, because the mean of its divisors is an integer number (10012220227).

Almost surely, 2^20024440453 is an apocalyptic number.

It is an amenable number.

20024440453 is a deficient number, since it is larger than the sum of its proper divisors (1).

20024440453 is an equidigital number, since it uses as much as digits as its factorization.

20024440453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15360, while the sum is 28.

Adding to 20024440453 its reverse (35404442002), we get a palindrome (55428882455).

The spelling of 20024440453 in words is "twenty billion, twenty-four million, four hundred forty thousand, four hundred fifty-three".