28502151 has 8 divisors (see below), whose sum is σ = 38045184. Its totient is φ = 18980280.

The previous prime is 28502143. The next prime is 28502153. The reversal of 28502151 is 15120582.

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

It is not a de Polignac number, because 28502151 - 2³ = 28502143 is a prime.

It is a super-2 number, since 2×28502151² = 1624745223253602, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28502153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1821 + ... + 7766.

It is an arithmetic number, because the mean of its divisors is an integer number (4755648).

Almost surely, 2^28502151 is an apocalyptic number.

28502151 is a deficient number, since it is larger than the sum of its proper divisors (9543033).

28502151 is an equidigital number, since it uses as much as digits as its factorization.

28502151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10581.

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 28502151 is about 5338.7405818226. The cubic root of 28502151 is about 305.4634216444.

The spelling of 28502151 in words is "twenty-eight million, five hundred two thousand, one hundred fifty-one".