28524502 has 4 divisors (see below), whose sum is σ = 42786756. Its totient is φ = 14262250.

The previous prime is 28524497. The next prime is 28524631. The reversal of 28524502 is 20542582.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7131124 + ... + 7131127.

It is an arithmetic number, because the mean of its divisors is an integer number (10696689).

Almost surely, 2^28524502 is an apocalyptic number.

28524502 is a deficient number, since it is larger than the sum of its proper divisors (14262254).

28524502 is a wasteful number, since it uses less digits than its factorization.

28524502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14262253.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 28524502 is about 5340.8334555573. The cubic root of 28524502 is about 305.5432475385.

The spelling of 28524502 in words is "twenty-eight million, five hundred twenty-four thousand, five hundred two".