28550554375 has 240 divisors, whose sum is σ = 47693733120. Its totient is φ = 16934400000.

The previous prime is 28550554343. The next prime is 28550554379. The reversal of 28550554375 is 57345505582.

It is not a de Polignac number, because 28550554375 - 2⁵ = 28550554343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28550554379) by changing a digit.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 468041845 + ... + 468041905.

It is an arithmetic number, because the mean of its divisors is an integer number (198723888).

Almost surely, 2^28550554375 is an apocalyptic number.

28550554375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28550554375 is a deficient number, since it is larger than the sum of its proper divisors (19143178745).

28550554375 is a wasteful number, since it uses less digits than its factorization.

28550554375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 4200000, while the sum is 49.

The spelling of 28550554375 in words is "twenty-eight billion, five hundred fifty million, five hundred fifty-four thousand, three hundred seventy-five".