2500511513 has 2 divisors, whose sum is σ = 2500511514. Its totient is φ = 2500511512.

The previous prime is 2500511477. The next prime is 2500511537. The reversal of 2500511513 is 3151150052.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2470885264 + 29626249 = 49708^2 + 5443^2 .

It is a cyclic number.

It is not a de Polignac number, because 2500511513 - 2⁸ = 2500511257 is a prime.

It is not a weakly prime, because it can be changed into another prime (2500511543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250255756 + 1250255757.

It is an arithmetic number, because the mean of its divisors is an integer number (1250255757).

Almost surely, 2^2500511513 is an apocalyptic number.

It is an amenable number.

2500511513 is a deficient number, since it is larger than the sum of its proper divisors (1).

2500511513 is an equidigital number, since it uses as much as digits as its factorization.

2500511513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 2500511513 is about 50005.1148683812. The cubic root of 2500511513 is about 1357.3013659784.

Adding to 2500511513 its reverse (3151150052), we get a palindrome (5651661565).

The spelling of 2500511513 in words is "two billion, five hundred million, five hundred eleven thousand, five hundred thirteen".