2528431329 has 8 divisors (see below), whose sum is σ = 3371818752. Its totient is φ = 1685332400.

The previous prime is 2528431319. The next prime is 2528431333. The reversal of 2528431329 is 9231348252.

2528431329 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2528431329 - 2⁴ = 2528431313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2528431309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50769 + ... + 87374.

It is an arithmetic number, because the mean of its divisors is an integer number (421477344).

Almost surely, 2^2528431329 is an apocalyptic number.

It is an amenable number.

2528431329 is a deficient number, since it is larger than the sum of its proper divisors (843387423).

2528431329 is a wasteful number, since it uses less digits than its factorization.

2528431329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144247.

The product of its digits is 103680, while the sum is 39.

The square root of 2528431329 is about 50283.5095135572. The cubic root of 2528431329 is about 1362.3343935184.

The spelling of 2528431329 in words is "two billion, five hundred twenty-eight million, four hundred thirty-one thousand, three hundred twenty-nine".