2028555427 has 4 divisors (see below), whose sum is σ = 2061810496. Its totient is φ = 1995300360.

The previous prime is 2028555421. The next prime is 2028555457. The reversal of 2028555427 is 7245558202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2028555427 is a prime.

It is a super-2 number, since 2×2028555427² = 8230074240822304658, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2028555427.

It is not an unprimeable number, because it can be changed into a prime (2028555421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16627443 + ... + 16627564.

It is an arithmetic number, because the mean of its divisors is an integer number (515452624).

Almost surely, 2^2028555427 is an apocalyptic number.

2028555427 is a deficient number, since it is larger than the sum of its proper divisors (33255069).

2028555427 is an equidigital number, since it uses as much as digits as its factorization.

2028555427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33255068.

The product of its (nonzero) digits is 224000, while the sum is 40.

The square root of 2028555427 is about 45039.4874193746. The cubic root of 2028555427 is about 1265.8890004065.

The spelling of 2028555427 in words is "two billion, twenty-eight million, five hundred fifty-five thousand, four hundred twenty-seven".