28025550530 has 8 divisors (see below), whose sum is σ = 50445990972. Its totient is φ = 11210220208.

The previous prime is 28025550517. The next prime is 28025550551. The reversal of 28025550530 is 3505552082.

It can be written as a sum of positive squares in 2 ways, for example, as 24140147641 + 3885402889 = 155371^2 + 62333^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon 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 3 ways as a sum of consecutive naturals, for example, 1401277517 + ... + 1401277536.

Almost surely, 2^28025550530 is an apocalyptic number.

28025550530 is a deficient number, since it is larger than the sum of its proper divisors (22420440442).

28025550530 is a wasteful number, since it uses less digits than its factorization.

28025550530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2802555060.

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 28025550530 in words is "twenty-eight billion, twenty-five million, five hundred fifty thousand, five hundred thirty".