28542453 has 4 divisors (see below), whose sum is σ = 38056608. Its totient is φ = 19028300.

The previous prime is 28542431. The next prime is 28542457. The reversal of 28542453 is 35424582.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28542453 - 2⁵ = 28542421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28542457) 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, 4757073 + ... + 4757078.

It is an arithmetic number, because the mean of its divisors is an integer number (9514152).

Almost surely, 2^28542453 is an apocalyptic number.

It is an amenable number.

28542453 is a deficient number, since it is larger than the sum of its proper divisors (9514155).

28542453 is an equidigital number, since it uses as much as digits as its factorization.

28542453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9514154.

The product of its digits is 38400, while the sum is 33.

The square root of 28542453 is about 5342.5137341892. The cubic root of 28542453 is about 305.6073287820.

The spelling of 28542453 in words is "twenty-eight million, five hundred forty-two thousand, four hundred fifty-three".