2528812493 has 2 divisors, whose sum is σ = 2528812494. Its totient is φ = 2528812492.

The previous prime is 2528812477. The next prime is 2528812501. The reversal of 2528812493 is 3942188252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2151753769 + 377058724 = 46387^2 + 19418^2 .

It is a cyclic number.

It is not a de Polignac number, because 2528812493 - 2⁴ = 2528812477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2528812453) 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 as a sum of consecutive naturals, namely, 1264406246 + 1264406247.

It is an arithmetic number, because the mean of its divisors is an integer number (1264406247).

Almost surely, 2^2528812493 is an apocalyptic number.

It is an amenable number.

2528812493 is a deficient number, since it is larger than the sum of its proper divisors (1).

2528812493 is an equidigital number, since it uses as much as digits as its factorization.

2528812493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 276480, while the sum is 44.

The square root of 2528812493 is about 50287.2995198589. The cubic root of 2528812493 is about 1362.4028479167.

The spelling of 2528812493 in words is "two billion, five hundred twenty-eight million, eight hundred twelve thousand, four hundred ninety-three".