28550031501 has 32 divisors (see below), whose sum is σ = 39925353600. Its totient is φ = 18128517120.

The previous prime is 28550031469. The next prime is 28550031509. The reversal of 28550031501 is 10513005582.

It is not a de Polignac number, because 28550031501 - 2⁵ = 28550031469 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28550031509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1569265 + ... + 1587353.

It is an arithmetic number, because the mean of its divisors is an integer number (1247667300).

Almost surely, 2^28550031501 is an apocalyptic number.

It is an amenable number.

28550031501 is a deficient number, since it is larger than the sum of its proper divisors (11375322099).

28550031501 is a wasteful number, since it uses less digits than its factorization.

28550031501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18429.

The product of its (nonzero) digits is 6000, while the sum is 30.

The spelling of 28550031501 in words is "twenty-eight billion, five hundred fifty million, thirty-one thousand, five hundred one".