28005057953 has 2 divisors, whose sum is σ = 28005057954. Its totient is φ = 28005057952.

The previous prime is 28005057863. The next prime is 28005058007. The reversal of 28005057953 is 35975050082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27965203984 + 39853969 = 167228^2 + 6313^2 .

It is a cyclic number.

It is not a de Polignac number, because 28005057953 - 2²⁴ = 27988280737 is a prime.

It is not a weakly prime, because it can be changed into another prime (28005051953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14002528976 + 14002528977.

It is an arithmetic number, because the mean of its divisors is an integer number (14002528977).

Almost surely, 2^28005057953 is an apocalyptic number.

It is an amenable number.

28005057953 is a deficient number, since it is larger than the sum of its proper divisors (1).

28005057953 is an equidigital number, since it uses as much as digits as its factorization.

28005057953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378000, while the sum is 44.

The spelling of 28005057953 in words is "twenty-eight billion, five million, fifty-seven thousand, nine hundred fifty-three".