28552631855 has 32 divisors (see below), whose sum is σ = 38313608256. Its totient is φ = 20246400000.

The previous prime is 28552631851. The next prime is 28552631857. The reversal of 28552631855 is 55813625582.

It is not a de Polignac number, because 28552631855 - 2² = 28552631851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28552631851) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5005505 + ... + 5011205.

It is an arithmetic number, because the mean of its divisors is an integer number (1197300258).

Almost surely, 2^28552631855 is an apocalyptic number.

28552631855 is a deficient number, since it is larger than the sum of its proper divisors (9760976401).

28552631855 is a wasteful number, since it uses less digits than its factorization.

28552631855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7979.

The product of its digits is 2880000, while the sum is 50.

The spelling of 28552631855 in words is "twenty-eight billion, five hundred fifty-two million, six hundred thirty-one thousand, eight hundred fifty-five".