28000550502 has 48 divisors (see below), whose sum is σ = 66098991120. Its totient is φ = 8784481536.

The previous prime is 28000550491. The next prime is 28000550507. The reversal of 28000550502 is 20505500082.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28000550507) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 881503 + ... + 912714.

It is an arithmetic number, because the mean of its divisors is an integer number (1377062315).

Almost surely, 2^28000550502 is an apocalyptic number.

28000550502 is an abundant number, since it is smaller than the sum of its proper divisors (38098440618).

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

28000550502 is a wasteful number, since it uses less digits than its factorization.

28000550502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794262 (or 1794239 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The spelling of 28000550502 in words is "twenty-eight billion, five hundred fifty thousand, five hundred two".