28553885241 has 16 divisors (see below), whose sum is σ = 43529017344. Its totient is φ = 16309630224.

The previous prime is 28553885209. The next prime is 28553885291. The reversal of 28553885241 is 14258835582.

It is a happy number.

It is not a de Polignac number, because 28553885241 - 2⁵ = 28553885209 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28553885291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235251 + ... + 335336.

It is an arithmetic number, because the mean of its divisors is an integer number (2720563584).

Almost surely, 2^28553885241 is an apocalyptic number.

28553885241 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

28553885241 is a deficient number, since it is larger than the sum of its proper divisors (14975132103).

28553885241 is a wasteful number, since it uses less digits than its factorization.

28553885241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572980.

The product of its digits is 3072000, while the sum is 51.

The spelling of 28553885241 in words is "twenty-eight billion, five hundred fifty-three million, eight hundred eighty-five thousand, two hundred forty-one".