28251033 has 8 divisors (see below), whose sum is σ = 37879200. Its totient is φ = 18728448.

The previous prime is 28251011. The next prime is 28251037. The reversal of 28251033 is 33015282.

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

It is not a de Polignac number, because 28251033 - 2¹² = 28246937 is a prime.

It is a super-3 number, since 3×28251033³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28250994 and 28251012.

It is not an unprimeable number, because it can be changed into a prime (28251037) 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, 25768 + ... + 26841.

It is an arithmetic number, because the mean of its divisors is an integer number (4734900).

Almost surely, 2^28251033 is an apocalyptic number.

It is an amenable number.

28251033 is a deficient number, since it is larger than the sum of its proper divisors (9628167).

28251033 is a wasteful number, since it uses less digits than its factorization.

28251033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52791.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 28251033 is about 5315.1700819447. The cubic root of 28251033 is about 304.5636796184.

It can be divided in two parts, 282 and 51033, that added together give a palindrome (51315).

The spelling of 28251033 in words is "twenty-eight million, two hundred fifty-one thousand, thirty-three".