28308030527550 has 48 divisors (see below), whose sum is σ = 72101318849712. Its totient is φ = 7344786297600.

The previous prime is 28308030527537. The next prime is 28308030527551. The reversal of 28308030527550 is 5572503080382.

It is a self number, because there is not a number n which added to its sum of digits gives 28308030527550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28308030527551) 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, 2550267471 + ... + 2550278570.

It is an arithmetic number, because the mean of its divisors is an integer number (1502110809369).

Almost surely, 2^{28308030527550} is an apocalyptic number.

28308030527550 is an abundant number, since it is smaller than the sum of its proper divisors (43793288322162).

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

28308030527550 is a wasteful number, since it uses less digits than its factorization.

28308030527550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5100546093 (or 5100546088 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 48.

The spelling of 28308030527550 in words is "twenty-eight trillion, three hundred eight billion, thirty million, five hundred twenty-seven thousand, five hundred fifty".