1326525253 has 4 divisors (see below), whose sum is σ = 1384200288. Its totient is φ = 1268850220.

The previous prime is 1326525229. The next prime is 1326525271. The reversal of 1326525253 is 3525256231.

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 an emirpimes, since its reverse is a distinct semiprime: 3525256231 = 7 ⋅503608033.

It is a cyclic number.

It is not a de Polignac number, because 1326525253 - 2²¹ = 1324428101 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 (1326520253) 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, 28837483 + ... + 28837528.

It is an arithmetic number, because the mean of its divisors is an integer number (346050072).

Almost surely, 2^1326525253 is an apocalyptic number.

It is an amenable number.

1326525253 is a deficient number, since it is larger than the sum of its proper divisors (57675035).

1326525253 is an equidigital number, since it uses as much as digits as its factorization.

1326525253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57675034.

The product of its digits is 54000, while the sum is 34.

The square root of 1326525253 is about 36421.4943817521. The cubic root of 1326525253 is about 1098.7659033050.

The spelling of 1326525253 in words is "one billion, three hundred twenty-six million, five hundred twenty-five thousand, two hundred fifty-three".