28255283551 has 16 divisors (see below), whose sum is σ = 32973605280. Its totient is φ = 23926394880.

The previous prime is 28255283491. The next prime is 28255283561. The reversal of 28255283551 is 15538255282.

It is a cyclic number.

It is not a de Polignac number, because 28255283551 - 2¹¹ = 28255281503 is a prime.

It is a super-2 number, since 2×28255283551² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28255283561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 760716 + ... + 796993.

It is an arithmetic number, because the mean of its divisors is an integer number (2060850330).

Almost surely, 2^28255283551 is an apocalyptic number.

28255283551 is a deficient number, since it is larger than the sum of its proper divisors (4718321729).

28255283551 is a wasteful number, since it uses less digits than its factorization.

28255283551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557834.

The product of its digits is 960000, while the sum is 46.

The spelling of 28255283551 in words is "twenty-eight billion, two hundred fifty-five million, two hundred eighty-three thousand, five hundred fifty-one".