30528053 has 4 divisors (see below), whose sum is σ = 31104108. Its totient is φ = 29952000.

The previous prime is 30528011. The next prime is 30528119. The reversal of 30528053 is 35082503.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35082503 = 61 ⋅575123.

It can be written as a sum of positive squares in 2 ways, for example, as 16337764 + 14190289 = 4042^2 + 3767^2 .

It is a cyclic number.

It is not a de Polignac number, because 30528053 - 2⁶ = 30527989 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 (30528353) 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, 287948 + ... + 288053.

It is an arithmetic number, because the mean of its divisors is an integer number (7776027).

Almost surely, 2^30528053 is an apocalyptic number.

It is an amenable number.

30528053 is a deficient number, since it is larger than the sum of its proper divisors (576055).

30528053 is an equidigital number, since it uses as much as digits as its factorization.

30528053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576054.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 30528053 is about 5525.2197241377. The cubic root of 30528053 is about 312.5357501500.

The spelling of 30528053 in words is "thirty million, five hundred twenty-eight thousand, fifty-three".