28458053 has 4 divisors (see below), whose sum is σ = 30647148. Its totient is φ = 26268960.

The previous prime is 28458037. The next prime is 28458083. The reversal of 28458053 is 35085482.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17581249 + 10876804 = 4193^2 + 3298^2 .

It is a cyclic number.

It is not a de Polignac number, because 28458053 - 2⁴ = 28458037 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 (28458013) 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, 1094528 + ... + 1094553.

It is an arithmetic number, because the mean of its divisors is an integer number (7661787).

Almost surely, 2^28458053 is an apocalyptic number.

It is an amenable number.

28458053 is a deficient number, since it is larger than the sum of its proper divisors (2189095).

28458053 is a wasteful number, since it uses less digits than its factorization.

28458053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2189094.

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 28458053 is about 5334.6089828590. The cubic root of 28458053 is about 305.3058045467.

The spelling of 28458053 in words is "twenty-eight million, four hundred fifty-eight thousand, fifty-three".