20755725258 has 16 divisors (see below), whose sum is σ = 41642405280. Its totient is φ = 6896749296.

The previous prime is 20755725217. The next prime is 20755725259. The reversal of 20755725258 is 85252755702.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20755725259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5454388 + ... + 5458191.

It is an arithmetic number, because the mean of its divisors is an integer number (2602650330).

Almost surely, 2^20755725258 is an apocalyptic number.

20755725258 is an abundant number, since it is smaller than the sum of its proper divisors (20886680022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20755725258 is a wasteful number, since it uses less digits than its factorization.

20755725258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10912901.

The product of its (nonzero) digits is 1960000, while the sum is 48.

The spelling of 20755725258 in words is "twenty billion, seven hundred fifty-five million, seven hundred twenty-five thousand, two hundred fifty-eight".