28152052 has 6 divisors (see below), whose sum is σ = 49266098. Its totient is φ = 14076024.

The previous prime is 28152043. The next prime is 28152067. The reversal of 28152052 is 25025182.

It can be written as a sum of positive squares in only one way, i.e., 15163236 + 12988816 = 3894^2 + 3604^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3519003 + ... + 3519010.

Almost surely, 2^28152052 is an apocalyptic number.

It is an amenable number.

28152052 is a deficient number, since it is larger than the sum of its proper divisors (21114046).

28152052 is a wasteful number, since it uses less digits than its factorization.

28152052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7038017 (or 7038015 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 28152052 is about 5305.8507329174. The cubic root of 28152052 is about 304.2075711883.

The spelling of 28152052 in words is "twenty-eight million, one hundred fifty-two thousand, fifty-two".