28727525555 has 8 divisors (see below), whose sum is σ = 35313836544. Its totient is φ = 22421483200.

The previous prime is 28727525539. The next prime is 28727525557. The reversal of 28727525555 is 55552572782.

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

It is not a de Polignac number, because 28727525555 - 2⁴ = 28727525539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28727525497 and 28727525506.

It is not an unprimeable number, because it can be changed into a prime (28727525557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70066931 + ... + 70067340.

It is an arithmetic number, because the mean of its divisors is an integer number (4414229568).

Almost surely, 2^28727525555 is an apocalyptic number.

28727525555 is a deficient number, since it is larger than the sum of its proper divisors (6586310989).

28727525555 is a wasteful number, since it uses less digits than its factorization.

28727525555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140134317.

The product of its digits is 9800000, while the sum is 53.

The spelling of 28727525555 in words is "twenty-eight billion, seven hundred twenty-seven million, five hundred twenty-five thousand, five hundred fifty-five".