28557443303 has 2 divisors, whose sum is σ = 28557443304. Its totient is φ = 28557443302.

The previous prime is 28557443249. The next prime is 28557443329. The reversal of 28557443303 is 30334475582.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28557443303 - 2¹⁰ = 28557442279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28557446303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14278721651 + 14278721652.

It is an arithmetic number, because the mean of its divisors is an integer number (14278721652).

Almost surely, 2^28557443303 is an apocalyptic number.

28557443303 is a deficient number, since it is larger than the sum of its proper divisors (1).

28557443303 is an equidigital number, since it uses as much as digits as its factorization.

28557443303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1209600, while the sum is 44.

The spelling of 28557443303 in words is "twenty-eight billion, five hundred fifty-seven million, four hundred forty-three thousand, three hundred three".