2528342669 has 4 divisors (see below), whose sum is σ = 2530484700. Its totient is φ = 2526200640.

The previous prime is 2528342657. The next prime is 2528342683. The reversal of 2528342669 is 9662438252.

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 2189304100 + 339038569 = 46790^2 + 18413^2 .

It is a cyclic number.

It is not a de Polignac number, because 2528342669 - 2¹² = 2528338573 is a prime.

It is a super-2 number, since 2×2528342669² = 12785033303772087122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2528345669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1069244 + ... + 1071605.

It is an arithmetic number, because the mean of its divisors is an integer number (632621175).

Almost surely, 2^2528342669 is an apocalyptic number.

It is an amenable number.

2528342669 is a deficient number, since it is larger than the sum of its proper divisors (2142031).

2528342669 is a wasteful number, since it uses less digits than its factorization.

2528342669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142030.

The product of its digits is 1244160, while the sum is 47.

The square root of 2528342669 is about 50282.6279046750. The cubic root of 2528342669 is about 1362.3184698141.

The spelling of 2528342669 in words is "two billion, five hundred twenty-eight million, three hundred forty-two thousand, six hundred sixty-nine".