28058533256 has 48 divisors (see below), whose sum is σ = 58805717760. Its totient is φ = 12532328640.

The previous prime is 28058533231. The next prime is 28058533259. The reversal of 28058533256 is 65233585082.

It is a self number, because there is not a number n which added to its sum of digits gives 28058533256.

It is not an unprimeable number, because it can be changed into a prime (28058533259) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 292820 + ... + 376643.

It is an arithmetic number, because the mean of its divisors is an integer number (1225119120).

Almost surely, 2^28058533256 is an apocalyptic number.

28058533256 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28058533256 is an abundant number, since it is smaller than the sum of its proper divisors (30747184504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28058533256 is a wasteful number, since it uses less digits than its factorization.

28058533256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669526 (or 669509 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 47.

The spelling of 28058533256 in words is "twenty-eight billion, fifty-eight million, five hundred thirty-three thousand, two hundred fifty-six".