27532620252 has 72 divisors (see below), whose sum is σ = 72492516096. Its totient is φ = 9137037168.

The previous prime is 27532620251. The next prime is 27532620287. The reversal of 27532620252 is 25202623572.

27532620252 is a `hidden beast` number, since 2 + 7 + 5 + 3 + 2 + 620 + 25 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27532620251) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 158253 + ... + 283035.

Almost surely, 2^27532620252 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 27532620252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36246258048).

27532620252 is an abundant number, since it is smaller than the sum of its proper divisors (44959895844).

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

27532620252 is a wasteful number, since it uses less digits than its factorization.

27532620252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125029 (or 125015 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 36.

The spelling of 27532620252 in words is "twenty-seven billion, five hundred thirty-two million, six hundred twenty thousand, two hundred fifty-two".