28552360725504 has 1188 divisors, whose sum is σ = 111145134386520. Its totient is φ = 6979599728640.

The previous prime is 28552360725491. The next prime is 28552360725557. The reversal of 28552360725504 is 40552706325582.

28552360725504 is a `hidden beast` number, since 2 + 8 + 5 + 5 + 2 + 3 + 60 + 72 + 5 + 504 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 1435575592 + ... + 1435595480.

Almost surely, 2^{28552360725504} is an apocalyptic number.

28552360725504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28552360725504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55572567193260).

28552360725504 is an abundant number, since it is smaller than the sum of its proper divisors (82592773661016).

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

28552360725504 is a wasteful number, since it uses less digits than its factorization.

28552360725504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19974 (or 19929 counting only the distinct ones).

The product of its (nonzero) digits is 20160000, while the sum is 54.

The spelling of 28552360725504 in words is "twenty-eight trillion, five hundred fifty-two billion, three hundred sixty million, seven hundred twenty-five thousand, five hundred four".