28625733550 has 48 divisors (see below), whose sum is σ = 53704848384. Its totient is φ = 11351340000.

The previous prime is 28625733527. The next prime is 28625733571. The reversal of 28625733550 is 5533752682.

It is a self number, because there is not a number n which added to its sum of digits gives 28625733550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9633565 + ... + 9636535.

It is an arithmetic number, because the mean of its divisors is an integer number (1118851008).

Almost surely, 2^28625733550 is an apocalyptic number.

28625733550 is a deficient number, since it is larger than the sum of its proper divisors (25079114834).

28625733550 is a wasteful number, since it uses less digits than its factorization.

28625733550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4585 (or 4580 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 46.

The spelling of 28625733550 in words is "twenty-eight billion, six hundred twenty-five million, seven hundred thirty-three thousand, five hundred fifty".