28552350637 has 2 divisors, whose sum is σ = 28552350638. Its totient is φ = 28552350636.

The previous prime is 28552350623. The next prime is 28552350647. The reversal of 28552350637 is 73605325582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28279803556 + 272547081 = 168166^2 + 16509^2 .

It is a cyclic number.

It is not a de Polignac number, because 28552350637 - 2³¹ = 26404866989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28552350647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14276175318 + 14276175319.

It is an arithmetic number, because the mean of its divisors is an integer number (14276175319).

Almost surely, 2^28552350637 is an apocalyptic number.

It is an amenable number.

28552350637 is a deficient number, since it is larger than the sum of its proper divisors (1).

28552350637 is an equidigital number, since it uses as much as digits as its factorization.

28552350637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512000, while the sum is 46.

The spelling of 28552350637 in words is "twenty-eight billion, five hundred fifty-two million, three hundred fifty thousand, six hundred thirty-seven".