28556363550 has 96 divisors (see below), whose sum is σ = 83200924800. Its totient is φ = 6390230400.

The previous prime is 28556363543. The next prime is 28556363551. The reversal of 28556363550 is 5536365582.

It is a self number, because there is not a number n which added to its sum of digits gives 28556363550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28556363551) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 644200 + ... + 687099.

It is an arithmetic number, because the mean of its divisors is an integer number (866676300).

Almost surely, 2^28556363550 is an apocalyptic number.

28556363550 is an abundant number, since it is smaller than the sum of its proper divisors (54644561250).

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

28556363550 is a wasteful number, since it uses less digits than its factorization.

28556363550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331338 (or 1331333 counting only the distinct ones).

The product of its (nonzero) digits is 3240000, while the sum is 48.

The spelling of 28556363550 in words is "twenty-eight billion, five hundred fifty-six million, three hundred sixty-three thousand, five hundred fifty".