28025277532 has 24 divisors (see below), whose sum is σ = 56054275200. Its totient is φ = 12010036080.

The previous prime is 28025277481. The next prime is 28025277559. The reversal of 28025277532 is 23577252082.

It is a super-2 number, since 2×28025277532² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 625107 + ... + 668437.

It is an arithmetic number, because the mean of its divisors is an integer number (2335594800).

Almost surely, 2^28025277532 is an apocalyptic number.

It is an amenable number.

28025277532 is an abundant number, since it is smaller than the sum of its proper divisors (28028997668).

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

28025277532 is a wasteful number, since it uses less digits than its factorization.

28025277532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66441 (or 66439 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 43.

The spelling of 28025277532 in words is "twenty-eight billion, twenty-five million, two hundred seventy-seven thousand, five hundred thirty-two".