28522503 has 16 divisors (see below), whose sum is σ = 42888960. Its totient is φ = 18730008.

The previous prime is 28522493. The next prime is 28522513. The reversal of 28522503 is 30522582.

It is an interprime number because it is at equal distance from previous prime (28522493) and next prime (28522513).

It is not a de Polignac number, because 28522503 - 2¹² = 28518407 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28522513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6075 + ... + 9692.

It is an arithmetic number, because the mean of its divisors is an integer number (2680560).

Almost surely, 2^28522503 is an apocalyptic number.

28522503 is a deficient number, since it is larger than the sum of its proper divisors (14366457).

28522503 is a wasteful number, since it uses less digits than its factorization.

28522503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15843 (or 15837 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 28522503 is about 5340.6463092027. The cubic root of 28522503 is about 305.5361098712.

The spelling of 28522503 in words is "twenty-eight million, five hundred twenty-two thousand, five hundred three".