27525000020 has 24 divisors (see below), whose sum is σ = 66060000384. Its totient is φ = 9437142816.

The previous prime is 27525000011. The next prime is 27525000091. The reversal of 27525000020 is 2000052572.

It is a super-2 number, since 2×27525000020² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27525000020.

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 7 ways as a sum of consecutive naturals, for example, 98303432 + ... + 98303711.

It is an arithmetic number, because the mean of its divisors is an integer number (2752500016).

Almost surely, 2^27525000020 is an apocalyptic number.

27525000020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27525000020 is an abundant number, since it is smaller than the sum of its proper divisors (38535000364).

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

27525000020 is a wasteful number, since it uses less digits than its factorization.

27525000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196607159 (or 196607157 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 23.

Adding to 27525000020 its reverse (2000052572), we get a palindrome (29525052592).

The spelling of 27525000020 in words is "twenty-seven billion, five hundred twenty-five million, twenty", and thus it is an aban number.