2528807797 has 2 divisors, whose sum is σ = 2528807798. Its totient is φ = 2528807796.

The previous prime is 2528807789. The next prime is 2528807807. The reversal of 2528807797 is 7977088252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1492354161 + 1036453636 = 38631^2 + 32194^2 .

It is a cyclic number.

It is not a de Polignac number, because 2528807797 - 2³ = 2528807789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2528807707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1264403898 + 1264403899.

It is an arithmetic number, because the mean of its divisors is an integer number (1264403899).

Almost surely, 2^2528807797 is an apocalyptic number.

It is an amenable number.

2528807797 is a deficient number, since it is larger than the sum of its proper divisors (1).

2528807797 is an equidigital number, since it uses as much as digits as its factorization.

2528807797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3951360, while the sum is 55.

The square root of 2528807797 is about 50287.2528281273. The cubic root of 2528807797 is about 1362.4020045897.

The spelling of 2528807797 in words is "two billion, five hundred twenty-eight million, eight hundred seven thousand, seven hundred ninety-seven".