28005505351 has 2 divisors, whose sum is σ = 28005505352. Its totient is φ = 28005505350.

The previous prime is 28005505321. The next prime is 28005505427. The reversal of 28005505351 is 15350550082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28005505351 - 2¹³ = 28005497159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28005505301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14002752675 + 14002752676.

It is an arithmetic number, because the mean of its divisors is an integer number (14002752676).

Almost surely, 2^28005505351 is an apocalyptic number.

28005505351 is a deficient number, since it is larger than the sum of its proper divisors (1).

28005505351 is an equidigital number, since it uses as much as digits as its factorization.

28005505351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30000, while the sum is 34.

The spelling of 28005505351 in words is "twenty-eight billion, five million, five hundred five thousand, three hundred fifty-one".