2528572391 has 2 divisors, whose sum is σ = 2528572392. Its totient is φ = 2528572390.

The previous prime is 2528572363. The next prime is 2528572451. The reversal of 2528572391 is 1932758252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2528572391 - 2¹⁴ = 2528556007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2528572331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1264286195 + 1264286196.

It is an arithmetic number, because the mean of its divisors is an integer number (1264286196).

Almost surely, 2^2528572391 is an apocalyptic number.

2528572391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2528572391 is an equidigital number, since it uses as much as digits as its factorization.

2528572391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 302400, while the sum is 44.

The square root of 2528572391 is about 50284.9121606074. The cubic root of 2528572391 is about 1362.3597280725.

The spelling of 2528572391 in words is "two billion, five hundred twenty-eight million, five hundred seventy-two thousand, three hundred ninety-one".