28552616 has 8 divisors (see below), whose sum is σ = 53536170. Its totient is φ = 14276304.

The previous prime is 28552607. The next prime is 28552619. The reversal of 28552616 is 61625582.

It can be written as a sum of positive squares in only one way, i.e., 27984100 + 568516 = 5290^2 + 754^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (28552619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1784531 + ... + 1784546.

Almost surely, 2^28552616 is an apocalyptic number.

It is an amenable number.

28552616 is a deficient number, since it is larger than the sum of its proper divisors (24983554).

28552616 is a wasteful number, since it uses less digits than its factorization.

28552616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3569083 (or 3569079 counting only the distinct ones).

The product of its digits is 28800, while the sum is 35.

The square root of 28552616 is about 5343.4647935586. The cubic root of 28552616 is about 305.6435966146.

The spelling of 28552616 in words is "twenty-eight million, five hundred fifty-two thousand, six hundred sixteen".