28052506 has 8 divisors (see below), whose sum is σ = 42585984. Its totient is φ = 13857180.

The previous prime is 28052503. The next prime is 28052509. The reversal of 28052506 is 60525082.

It is an interprime number because it is at equal distance from previous prime (28052503) and next prime (28052509).

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

It is not an unprimeable number, because it can be changed into a prime (28052503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84330 + ... + 84661.

It is an arithmetic number, because the mean of its divisors is an integer number (5323248).

Almost surely, 2^28052506 is an apocalyptic number.

28052506 is a deficient number, since it is larger than the sum of its proper divisors (14533478).

28052506 is a wasteful number, since it uses less digits than its factorization.

28052506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169076.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 28052506 is about 5296.4616490635. The cubic root of 28052506 is about 303.8485871678.

Adding to 28052506 its reverse (60525082), we get a palindrome (88577588).

It can be divided in two parts, 2 and 8052506, that added together give a palindrome (8052508).

The spelling of 28052506 in words is "twenty-eight million, fifty-two thousand, five hundred six".