28241051 has 4 divisors (see below), whose sum is σ = 28331592. Its totient is φ = 28150512.

The previous prime is 28241023. The next prime is 28241071. The reversal of 28241051 is 15014282.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28241051 - 2¹⁰ = 28240027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28241021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44801 + ... + 45426.

It is an arithmetic number, because the mean of its divisors is an integer number (7082898).

Almost surely, 2^28241051 is an apocalyptic number.

28241051 is a deficient number, since it is larger than the sum of its proper divisors (90541).

28241051 is an equidigital number, since it uses as much as digits as its factorization.

28241051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90540.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 28241051 is about 5314.2309885815. The cubic root of 28241051 is about 304.5278046732.

The spelling of 28241051 in words is "twenty-eight million, two hundred forty-one thousand, fifty-one".