20552145793625 has 64 divisors (see below), whose sum is σ = 27663338626560. Its totient is φ = 15193267200000.

The previous prime is 20552145793609. The next prime is 20552145793633. The reversal of 20552145793625 is 52639754125502.

It is not a de Polignac number, because 20552145793625 - 2⁴ = 20552145793609 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 529797980 + ... + 529836770.

It is an arithmetic number, because the mean of its divisors is an integer number (432239666040).

Almost surely, 2^{20552145793625} is an apocalyptic number.

20552145793625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20552145793625 is a deficient number, since it is larger than the sum of its proper divisors (7111192832935).

20552145793625 is a wasteful number, since it uses less digits than its factorization.

20552145793625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44307 (or 44297 counting only the distinct ones).

The product of its (nonzero) digits is 22680000, while the sum is 56.

The spelling of 20552145793625 in words is "twenty trillion, five hundred fifty-two billion, one hundred forty-five million, seven hundred ninety-three thousand, six hundred twenty-five".