28512422523253 has 2 divisors, whose sum is σ = 28512422523254. Its totient is φ = 28512422523252.

The previous prime is 28512422523239. The next prime is 28512422523353. The reversal of 28512422523253 is 35232522421582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20839206740004 + 7673215783249 = 4564998^2 + 2770057^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28512422523253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28512422523203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14256211261626 + 14256211261627.

It is an arithmetic number, because the mean of its divisors is an integer number (14256211261627).

Almost surely, 2^{28512422523253} is an apocalyptic number.

It is an amenable number.

28512422523253 is a deficient number, since it is larger than the sum of its proper divisors (1).

28512422523253 is an equidigital number, since it uses as much as digits as its factorization.

28512422523253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304000, while the sum is 46.

The spelling of 28512422523253 in words is "twenty-eight trillion, five hundred twelve billion, four hundred twenty-two million, five hundred twenty-three thousand, two hundred fifty-three".