2500497977 has 2 divisors, whose sum is σ = 2500497978. Its totient is φ = 2500497976.

The previous prime is 2500497953. The next prime is 2500497991. The reversal of 2500497977 is 7797940052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2379585961 + 120912016 = 48781^2 + 10996^2 .

It is a cyclic number.

It is not a de Polignac number, because 2500497977 - 2²⁰ = 2499449401 is a prime.

It is not a weakly prime, because it can be changed into another prime (2500497917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250248988 + 1250248989.

It is an arithmetic number, because the mean of its divisors is an integer number (1250248989).

Almost surely, 2^2500497977 is an apocalyptic number.

It is an amenable number.

2500497977 is a deficient number, since it is larger than the sum of its proper divisors (1).

2500497977 is an equidigital number, since it uses as much as digits as its factorization.

2500497977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1111320, while the sum is 50.

The square root of 2500497977 is about 50004.9795220436. The cubic root of 2500497977 is about 1357.2989168176.

The spelling of 2500497977 in words is "two billion, five hundred million, four hundred ninety-seven thousand, nine hundred seventy-seven".