28050300027557 has 8 divisors (see below), whose sum is σ = 29203052086296. Its totient is φ = 26918318276352.

The previous prime is 28050300027553. The next prime is 28050300027571. The reversal of 28050300027557 is 75572000305082.

It can be written as a sum of positive squares in 4 ways, for example, as 2469829121761 + 25580470905796 = 1571569^2 + 5057714^2 .

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 28050300027557 - 2² = 28050300027553 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28050300027553) 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, 5192574128 + ... + 5192579529.

It is an arithmetic number, because the mean of its divisors is an integer number (3650381510787).

Almost surely, 2^{28050300027557} is an apocalyptic number.

It is an amenable number.

28050300027557 is a deficient number, since it is larger than the sum of its proper divisors (1152752058739).

28050300027557 is a wasteful number, since it uses less digits than its factorization.

28050300027557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10385153767.

The product of its (nonzero) digits is 588000, while the sum is 44.

The spelling of 28050300027557 in words is "twenty-eight trillion, fifty billion, three hundred million, twenty-seven thousand, five hundred fifty-seven".