28553736532 has 12 divisors (see below), whose sum is σ = 50080331700. Its totient is φ = 14245070336.

The previous prime is 28553736527. The next prime is 28553736569. The reversal of 28553736532 is 23563735582.

It can be written as a sum of positive squares in 2 ways, for example, as 21288560836 + 7265175696 = 145906^2 + 85236^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7947463 + ... + 7951054.

It is an arithmetic number, because the mean of its divisors is an integer number (4173360975).

Almost surely, 2^28553736532 is an apocalyptic number.

It is an amenable number.

28553736532 is a deficient number, since it is larger than the sum of its proper divisors (21526595168).

28553736532 is a wasteful number, since it uses less digits than its factorization.

28553736532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15898970 (or 15898968 counting only the distinct ones).

The product of its digits is 4536000, while the sum is 49.

The spelling of 28553736532 in words is "twenty-eight billion, five hundred fifty-three million, seven hundred thirty-six thousand, five hundred thirty-two".