27532245172 has 12 divisors (see below), whose sum is σ = 49090512996. Its totient is φ = 13506384320.

The previous prime is 27532245137. The next prime is 27532245173. The reversal of 27532245172 is 27154223572.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 17879968656 + 9652276516 = 133716^2 + 98246^2 .

It is a super-2 number, since 2×27532245172² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27532245173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64934329 + ... + 64934752.

It is an arithmetic number, because the mean of its divisors is an integer number (4090876083).

Almost surely, 2^27532245172 is an apocalyptic number.

It is an amenable number.

27532245172 is a deficient number, since it is larger than the sum of its proper divisors (21558267824).

27532245172 is a wasteful number, since it uses less digits than its factorization.

27532245172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129869138 (or 129869136 counting only the distinct ones).

The product of its digits is 235200, while the sum is 40.

The spelling of 27532245172 in words is "twenty-seven billion, five hundred thirty-two million, two hundred forty-five thousand, one hundred seventy-two".