28052755537 has 2 divisors, whose sum is σ = 28052755538. Its totient is φ = 28052755536.

The previous prime is 28052755517. The next prime is 28052755573. The reversal of 28052755537 is 73555725082.

Together with next prime (28052755573) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20482189456 + 7570566081 = 143116^2 + 87009^2 .

It is a cyclic number.

It is not a de Polignac number, because 28052755537 - 2¹¹ = 28052753489 is a prime.

It is not a weakly prime, because it can be changed into another prime (28052755517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14026377768 + 14026377769.

It is an arithmetic number, because the mean of its divisors is an integer number (14026377769).

Almost surely, 2^28052755537 is an apocalyptic number.

It is an amenable number.

28052755537 is a deficient number, since it is larger than the sum of its proper divisors (1).

28052755537 is an equidigital number, since it uses as much as digits as its factorization.

28052755537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2940000, while the sum is 49.

The spelling of 28052755537 in words is "twenty-eight billion, fifty-two million, seven hundred fifty-five thousand, five hundred thirty-seven".