28201053 has 4 divisors (see below), whose sum is σ = 37601408. Its totient is φ = 18800700.

The previous prime is 28201051. The next prime is 28201087. The reversal of 28201053 is 35010282.

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 not a de Polignac number, because 28201053 - 2¹ = 28201051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28201051) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 4700173 + ... + 4700178.

It is an arithmetic number, because the mean of its divisors is an integer number (9400352).

Almost surely, 2^28201053 is an apocalyptic number.

It is an amenable number.

28201053 is a deficient number, since it is larger than the sum of its proper divisors (9400355).

28201053 is an equidigital number, since it uses as much as digits as its factorization.

28201053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9400354.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 28201053 is about 5310.4663637010. The cubic root of 28201053 is about 304.3839684528.

The spelling of 28201053 in words is "twenty-eight million, two hundred one thousand, fifty-three".