20475927525 has 48 divisors (see below), whose sum is σ = 36106867584. Its totient is φ = 10203002880.

The previous prime is 20475927487. The next prime is 20475927529. The reversal of 20475927525 is 52572957402.

It is not a de Polignac number, because 20475927525 - 2⁹ = 20475927013 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20475927529) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 116064 + ... + 233286.

It is an arithmetic number, because the mean of its divisors is an integer number (752226408).

Almost surely, 2^20475927525 is an apocalyptic number.

20475927525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20475927525 is a deficient number, since it is larger than the sum of its proper divisors (15630940059).

20475927525 is a wasteful number, since it uses less digits than its factorization.

20475927525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117390 (or 117385 counting only the distinct ones).

The product of its (nonzero) digits is 1764000, while the sum is 48.

The spelling of 20475927525 in words is "twenty billion, four hundred seventy-five million, nine hundred twenty-seven thousand, five hundred twenty-five".