28551959 has 8 divisors (see below), whose sum is σ = 30284928. Its totient is φ = 26824960.

The previous prime is 28551953. The next prime is 28551973. The reversal of 28551959 is 95915582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28551959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28551953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11834 + ... + 14040.

It is an arithmetic number, because the mean of its divisors is an integer number (3785616).

Almost surely, 2^28551959 is an apocalyptic number.

28551959 is a deficient number, since it is larger than the sum of its proper divisors (1732969).

28551959 is a wasteful number, since it uses less digits than its factorization.

28551959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2985.

The product of its digits is 162000, while the sum is 44.

The square root of 28551959 is about 5343.4033162396. The cubic root of 28551959 is about 305.6412522949.

The spelling of 28551959 in words is "twenty-eight million, five hundred fifty-one thousand, nine hundred fifty-nine".