20924589253 has 2 divisors, whose sum is σ = 20924589254. Its totient is φ = 20924589252.

The previous prime is 20924589229. The next prime is 20924589277. The reversal of 20924589253 is 35298542902.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (20924589229) and next prime (20924589277).

It can be written as a sum of positive squares in only one way, i.e., 19039032324 + 1885556929 = 137982^2 + 43423^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20924589253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20924589197 and 20924589206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20924589223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10462294626 + 10462294627.

It is an arithmetic number, because the mean of its divisors is an integer number (10462294627).

Almost surely, 2^20924589253 is an apocalyptic number.

It is an amenable number.

20924589253 is a deficient number, since it is larger than the sum of its proper divisors (1).

20924589253 is an equidigital number, since it uses as much as digits as its factorization.

20924589253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1555200, while the sum is 49.

The spelling of 20924589253 in words is "twenty billion, nine hundred twenty-four million, five hundred eighty-nine thousand, two hundred fifty-three".