28552437575 has 12 divisors (see below), whose sum is σ = 35483889600. Its totient is φ = 22791068160.

The previous prime is 28552437553. The next prime is 28552437593. The reversal of 28552437575 is 57573425582.

It is not a de Polignac number, because 28552437575 - 2¹⁶ = 28552372039 is a prime.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1260599 + ... + 1283048.

It is an arithmetic number, because the mean of its divisors is an integer number (2956990800).

Almost surely, 2^28552437575 is an apocalyptic number.

28552437575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28552437575 is a deficient number, since it is larger than the sum of its proper divisors (6931452025).

28552437575 is a wasteful number, since it uses less digits than its factorization.

28552437575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2544106 (or 2544101 counting only the distinct ones).

The product of its digits is 11760000, while the sum is 53.

The spelling of 28552437575 in words is "twenty-eight billion, five hundred fifty-two million, four hundred thirty-seven thousand, five hundred seventy-five".