28255108250 has 32 divisors (see below), whose sum is σ = 53891579664. Its totient is φ = 11088792000.

The previous prime is 28255108249. The next prime is 28255108267. The reversal of 28255108250 is 5280155282.

It can be written as a sum of positive squares in 8 ways, for example, as 3974924209 + 24280184041 = 63047^2 + 155821^2 .

It is a super-2 number, since 2×28255108250² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1052981 + ... + 1079480.

Almost surely, 2^28255108250 is an apocalyptic number.

28255108250 is a deficient number, since it is larger than the sum of its proper divisors (25636471414).

28255108250 is a wasteful number, since it uses less digits than its factorization.

28255108250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132531 (or 2132521 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 38.

The spelling of 28255108250 in words is "twenty-eight billion, two hundred fifty-five million, one hundred eight thousand, two hundred fifty".