20525050455 has 64 divisors (see below), whose sum is σ = 40600412160. Its totient is φ = 8622153216.

The previous prime is 20525050451. The next prime is 20525050529. The reversal of 20525050455 is 55405052502.

It is not a de Polignac number, because 20525050455 - 2² = 20525050451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20525050451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 270681 + ... + 338109.

It is an arithmetic number, because the mean of its divisors is an integer number (634381440).

Almost surely, 2^20525050455 is an apocalyptic number.

20525050455 is a deficient number, since it is larger than the sum of its proper divisors (20075361705).

20525050455 is a wasteful number, since it uses less digits than its factorization.

20525050455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67680.

The product of its (nonzero) digits is 50000, while the sum is 33.

The spelling of 20525050455 in words is "twenty billion, five hundred twenty-five million, fifty thousand, four hundred fifty-five".