28055052757 has 8 divisors (see below), whose sum is σ = 29706831000. Its totient is φ = 26403439104.

The previous prime is 28055052733. The next prime is 28055052761. The reversal of 28055052757 is 75725055082.

It can be written as a sum of positive squares in 4 ways, for example, as 2340043876 + 25715008881 = 48374^2 + 160359^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28055052757 - 2²⁷ = 27920835029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28055052797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 565219 + ... + 612847.

It is an arithmetic number, because the mean of its divisors is an integer number (3713353875).

Almost surely, 2^28055052757 is an apocalyptic number.

It is an amenable number.

28055052757 is a deficient number, since it is larger than the sum of its proper divisors (1651778243).

28055052757 is a wasteful number, since it uses less digits than its factorization.

28055052757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82295.

The product of its (nonzero) digits is 980000, while the sum is 46.

The spelling of 28055052757 in words is "twenty-eight billion, fifty-five million, fifty-two thousand, seven hundred fifty-seven".