20752085755 has 4 divisors (see below), whose sum is σ = 24902502912. Its totient is φ = 16601668600.

The previous prime is 20752085693. The next prime is 20752085791. The reversal of 20752085755 is 55758025702.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-20752085755 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2075208571 + ... + 2075208580.

It is an arithmetic number, because the mean of its divisors is an integer number (6225625728).

Almost surely, 2^20752085755 is an apocalyptic number.

20752085755 is a deficient number, since it is larger than the sum of its proper divisors (4150417157).

20752085755 is an equidigital number, since it uses as much as digits as its factorization.

20752085755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4150417156.

The product of its (nonzero) digits is 980000, while the sum is 46.

The spelling of 20752085755 in words is "twenty billion, seven hundred fifty-two million, eighty-five thousand, seven hundred fifty-five".