27512525112 has 128 divisors (see below), whose sum is σ = 72568258560. Its totient is φ = 8675251200.

The previous prime is 27512525071. The next prime is 27512525129. The reversal of 27512525112 is 21152521572.

It is a super-2 number, since 2×27512525112² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42132178 + ... + 42132830.

It is an arithmetic number, because the mean of its divisors is an integer number (566939520).

Almost surely, 2^27512525112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27512525112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36284129280).

27512525112 is an abundant number, since it is smaller than the sum of its proper divisors (45055733448).

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

27512525112 is a wasteful number, since it uses less digits than its factorization.

27512525112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413 (or 1409 counting only the distinct ones).

The product of its digits is 14000, while the sum is 33.

The spelling of 27512525112 in words is "twenty-seven billion, five hundred twelve million, five hundred twenty-five thousand, one hundred twelve".