28524575453 has 6 divisors (see below), whose sum is σ = 31353459102. Its totient is φ = 25931432120.

The previous prime is 28524575411. The next prime is 28524575489. The reversal of 28524575453 is 35457542582.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 17097393049 + 11427182404 = 130757^2 + 106898^2 .

It is not a de Polignac number, because 28524575453 - 2¹⁶ = 28524509917 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 (28524575953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117870026 + ... + 117870267.

It is an arithmetic number, because the mean of its divisors is an integer number (5225576517).

Almost surely, 2^28524575453 is an apocalyptic number.

It is an amenable number.

28524575453 is a deficient number, since it is larger than the sum of its proper divisors (2828883649).

28524575453 is a wasteful number, since it uses less digits than its factorization.

28524575453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235740315 (or 235740304 counting only the distinct ones).

The product of its digits is 6720000, while the sum is 50.

The spelling of 28524575453 in words is "twenty-eight billion, five hundred twenty-four million, five hundred seventy-five thousand, four hundred fifty-three".