20247442263525 has 96 divisors (see below), whose sum is σ = 36776836131840. Its totient is φ = 9783599316480.

The previous prime is 20247442263421. The next prime is 20247442263589. The reversal of 20247442263525 is 52536224474202.

It is not a de Polignac number, because 20247442263525 - 2¹⁷ = 20247442132453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 177485154 + ... + 177599196.

It is an arithmetic number, because the mean of its divisors is an integer number (383092043040).

Almost surely, 2^{20247442263525} is an apocalyptic number.

20247442263525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20247442263525 is a deficient number, since it is larger than the sum of its proper divisors (16529393868315).

20247442263525 is a wasteful number, since it uses less digits than its factorization.

20247442263525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119515 (or 119510 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 48.

The spelling of 20247442263525 in words is "twenty trillion, two hundred forty-seven billion, four hundred forty-two million, two hundred sixty-three thousand, five hundred twenty-five".