20510322254253 has 24 divisors (see below), whose sum is σ = 32646921218912. Its totient is φ = 12328208006688.

The previous prime is 20510322254209. The next prime is 20510322254269. The reversal of 20510322254253 is 35245222301502.

It is a happy number.

20510322254253 is a `hidden beast` number, since 2 + 0 + 5 + 1 + 0 + 3 + 2 + 225 + 425 + 3 = 666.

It is not a de Polignac number, because 20510322254253 - 2¹² = 20510322250157 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20510322254203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2038389151 + ... + 2038399212.

Almost surely, 2^{20510322254253} is an apocalyptic number.

It is an amenable number.

20510322254253 is a deficient number, since it is larger than the sum of its proper divisors (12136598964659).

20510322254253 is a wasteful number, since it uses less digits than its factorization.

20510322254253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4076788425 (or 4076788422 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 20510322254253 its reverse (35245222301502), we get a palindrome (55755544555755).

The spelling of 20510322254253 in words is "twenty trillion, five hundred ten billion, three hundred twenty-two million, two hundred fifty-four thousand, two hundred fifty-three".