28050331 has 2 divisors, whose sum is σ = 28050332. Its totient is φ = 28050330.

The previous prime is 28050313. The next prime is 28050343. The reversal of 28050331 is 13305082.

Together with previous prime (28050313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28050331 - 2²³ = 19661723 is a prime.

It is a super-2 number, since 2×28050331² = 1573642138419122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28050361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14025165 + 14025166.

It is an arithmetic number, because the mean of its divisors is an integer number (14025166).

Almost surely, 2^28050331 is an apocalyptic number.

28050331 is a deficient number, since it is larger than the sum of its proper divisors (1).

28050331 is an equidigital number, since it uses as much as digits as its factorization.

28050331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 28050331 is about 5296.2563193259. The cubic root of 28050331 is about 303.8407341824.

The spelling of 28050331 in words is "twenty-eight million, fifty thousand, three hundred thirty-one".