2501187312017 has 2 divisors, whose sum is σ = 2501187312018. Its totient is φ = 2501187312016.

The previous prime is 2501187312007. The next prime is 2501187312031. The reversal of 2501187312017 is 7102137811052.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1971204768016 + 529982544001 = 1403996^2 + 727999^2 .

It is a cyclic number.

It is not a de Polignac number, because 2501187312017 - 2⁸ = 2501187311761 is a prime.

It is not a weakly prime, because it can be changed into another prime (2501187312007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250593656008 + 1250593656009.

It is an arithmetic number, because the mean of its divisors is an integer number (1250593656009).

Almost surely, 2^{2501187312017} is an apocalyptic number.

It is an amenable number.

2501187312017 is a deficient number, since it is larger than the sum of its proper divisors (1).

2501187312017 is an equidigital number, since it uses as much as digits as its factorization.

2501187312017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 38.

The spelling of 2501187312017 in words is "two trillion, five hundred one billion, one hundred eighty-seven million, three hundred twelve thousand, seventeen".