28301030057 has 4 divisors (see below), whose sum is σ = 28301427600. Its totient is φ = 28300632516.

The previous prime is 28301029997. The next prime is 28301030071. The reversal of 28301030057 is 75003010382.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75003010382 = 2 ⋅37501505191.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28301030057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28301030077) 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, 59423 + ... + 245220.

It is an arithmetic number, because the mean of its divisors is an integer number (7075356900).

Almost surely, 2^28301030057 is an apocalyptic number.

It is an amenable number.

28301030057 is a deficient number, since it is larger than the sum of its proper divisors (397543).

28301030057 is an equidigital number, since it uses as much as digits as its factorization.

28301030057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397542.

The product of its (nonzero) digits is 5040, while the sum is 29.

The spelling of 28301030057 in words is "twenty-eight billion, three hundred one million, thirty thousand, fifty-seven".