28313053 has 4 divisors (see below), whose sum is σ = 28323808. Its totient is φ = 28302300.

The previous prime is 28313017. The next prime is 28313063. The reversal of 28313053 is 35031382.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 35031382 = 2 ⋅17515691.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28313053 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 (28313063) 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, 1528 + ... + 7678.

It is an arithmetic number, because the mean of its divisors is an integer number (7080952).

Almost surely, 2^28313053 is an apocalyptic number.

It is an amenable number.

28313053 is a deficient number, since it is larger than the sum of its proper divisors (10755).

28313053 is an equidigital number, since it uses as much as digits as its factorization.

28313053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10754.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 28313053 is about 5321.0011276075. The cubic root of 28313053 is about 304.7863880973.

The spelling of 28313053 in words is "twenty-eight million, three hundred thirteen thousand, fifty-three".