20708725055 has 32 divisors (see below), whose sum is σ = 25662873600. Its totient is φ = 16032487680.

The previous prime is 20708725021. The next prime is 20708725087. The reversal of 20708725055 is 55052780702.

It is not a de Polignac number, because 20708725055 - 2⁶ = 20708724991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19050722 + ... + 19051808.

It is an arithmetic number, because the mean of its divisors is an integer number (801964800).

Almost surely, 2^20708725055 is an apocalyptic number.

20708725055 is a deficient number, since it is larger than the sum of its proper divisors (4954148545).

20708725055 is a wasteful number, since it uses less digits than its factorization.

20708725055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1799.

The product of its (nonzero) digits is 196000, while the sum is 41.

The spelling of 20708725055 in words is "twenty billion, seven hundred eight million, seven hundred twenty-five thousand, fifty-five".