28005277552 has 40 divisors (see below), whose sum is σ = 62044278912. Its totient is φ = 11995953600.

The previous prime is 28005277513. The next prime is 28005277579. The reversal of 28005277552 is 25577250082.

It is a super-2 number, since 2×28005277552² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28005277499 and 28005277508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151527 + ... + 281017.

Almost surely, 2^28005277552 is an apocalyptic number.

It is an amenable number.

28005277552 is an abundant number, since it is smaller than the sum of its proper divisors (34039001360).

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

28005277552 is a wasteful number, since it uses less digits than its factorization.

28005277552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131437 (or 131431 counting only the distinct ones).

The product of its (nonzero) digits is 392000, while the sum is 43.

It can be divided in two parts, 280052 and 77552, that added together give a square (357604 = 598²).

The spelling of 28005277552 in words is "twenty-eight billion, five million, two hundred seventy-seven thousand, five hundred fifty-two".