28553529375 has 320 divisors, whose sum is σ = 65319091200. Its totient is φ = 12026880000.

The previous prime is 28553529353. The next prime is 28553529421. The reversal of 28553529375 is 57392535582.

It is a happy number.

28553529375 is a `hidden beast` number, since 2 + 8 + 553 + 52 + 9 + 37 + 5 = 666.

It is not a de Polignac number, because 28553529375 - 2⁵ = 28553529343 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 118479255 + ... + 118479495.

It is an arithmetic number, because the mean of its divisors is an integer number (204122160).

Almost surely, 2^28553529375 is an apocalyptic number.

28553529375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28553529375 is an abundant number, since it is smaller than the sum of its proper divisors (36765561825).

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

28553529375 is a wasteful number, since it uses less digits than its factorization.

28553529375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353 (or 332 counting only the distinct ones).

The product of its digits is 11340000, while the sum is 54.

The spelling of 28553529375 in words is "twenty-eight billion, five hundred fifty-three million, five hundred twenty-nine thousand, three hundred seventy-five".