2521077497 has 2 divisors, whose sum is σ = 2521077498. Its totient is φ = 2521077496.

The previous prime is 2521077431. The next prime is 2521077521. The reversal of 2521077497 is 7947701252.

2521077497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2139617536 + 381459961 = 46256^2 + 19531^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2521077497 is a prime.

It is not a weakly prime, because it can be changed into another prime (2521076497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260538748 + 1260538749.

It is an arithmetic number, because the mean of its divisors is an integer number (1260538749).

Almost surely, 2^2521077497 is an apocalyptic number.

It is an amenable number.

2521077497 is a deficient number, since it is larger than the sum of its proper divisors (1).

2521077497 is an equidigital number, since it uses as much as digits as its factorization.

2521077497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 246960, while the sum is 44.

The square root of 2521077497 is about 50210.3325720912. The cubic root of 2521077497 is about 1361.0123476398.

The spelling of 2521077497 in words is "two billion, five hundred twenty-one million, seventy-seven thousand, four hundred ninety-seven".