28552437593 has 2 divisors, whose sum is σ = 28552437594. Its totient is φ = 28552437592.

The previous prime is 28552437553. The next prime is 28552437629. The reversal of 28552437593 is 39573425582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26887144729 + 1665292864 = 163973^2 + 40808^2 .

It is a cyclic number.

It is not a de Polignac number, because 28552437593 - 2¹⁰ = 28552436569 is a prime.

It is not a weakly prime, because it can be changed into another prime (28552437553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14276218796 + 14276218797.

It is an arithmetic number, because the mean of its divisors is an integer number (14276218797).

Almost surely, 2^28552437593 is an apocalyptic number.

It is an amenable number.

28552437593 is a deficient number, since it is larger than the sum of its proper divisors (1).

28552437593 is an equidigital number, since it uses as much as digits as its factorization.

28552437593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072000, while the sum is 53.

The spelling of 28552437593 in words is "twenty-eight billion, five hundred fifty-two million, four hundred thirty-seven thousand, five hundred ninety-three".