28052552505525 has 24 divisors (see below), whose sum is σ = 46434593308320. Its totient is φ = 14943821605440.

The previous prime is 28052552505517. The next prime is 28052552505559. The reversal of 28052552505525 is 52550525525082.

It is not a de Polignac number, because 28052552505525 - 2³ = 28052552505517 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 219182235 + ... + 219310184.

It is an arithmetic number, because the mean of its divisors is an integer number (1934774721180).

Almost surely, 2^{28052552505525} is an apocalyptic number.

28052552505525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28052552505525 is a deficient number, since it is larger than the sum of its proper divisors (18382040802795).

28052552505525 is a wasteful number, since it uses less digits than its factorization.

28052552505525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438493285 (or 438493280 counting only the distinct ones).

The product of its (nonzero) digits is 10000000, while the sum is 51.

The spelling of 28052552505525 in words is "twenty-eight trillion, fifty-two billion, five hundred fifty-two million, five hundred five thousand, five hundred twenty-five".