27550025506 has 8 divisors (see below), whose sum is σ = 42104756124. Its totient is φ = 13515106800.

The previous prime is 27550025431. The next prime is 27550025507. The reversal of 27550025506 is 60552005572.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 26133632281 + 1416393225 = 161659^2 + 37635^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (27550025507) 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, 129952845 + ... + 129953056.

Almost surely, 2^27550025506 is an apocalyptic number.

27550025506 is a deficient number, since it is larger than the sum of its proper divisors (14554730618).

27550025506 is a wasteful number, since it uses less digits than its factorization.

27550025506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259905956.

The product of its (nonzero) digits is 105000, while the sum is 37.

The spelling of 27550025506 in words is "twenty-seven billion, five hundred fifty million, twenty-five thousand, five hundred six".