2528722277 has 2 divisors, whose sum is σ = 2528722278. Its totient is φ = 2528722276.

The previous prime is 2528722271. The next prime is 2528722279. The reversal of 2528722277 is 7722278252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1643005156 + 885717121 = 40534^2 + 29761^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2528722277 is a prime.

Together with 2528722279, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2528722271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1264361138 + 1264361139.

It is an arithmetic number, because the mean of its divisors is an integer number (1264361139).

Almost surely, 2^2528722277 is an apocalyptic number.

It is an amenable number.

2528722277 is a deficient number, since it is larger than the sum of its proper divisors (1).

2528722277 is an equidigital number, since it uses as much as digits as its factorization.

2528722277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 439040, while the sum is 44.

The square root of 2528722277 is about 50286.4025060453. The cubic root of 2528722277 is about 1362.3866463732.

The spelling of 2528722277 in words is "two billion, five hundred twenty-eight million, seven hundred twenty-two thousand, two hundred seventy-seven".