2091596501 has 2 divisors, whose sum is σ = 2091596502. Its totient is φ = 2091596500.

The previous prime is 2091596489. The next prime is 2091596503. The reversal of 2091596501 is 1056951902.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1885817476 + 205779025 = 43426^2 + 14345^2 .

It is a cyclic number.

It is not a de Polignac number, because 2091596501 - 2²² = 2087402197 is a prime.

Together with 2091596503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2091596503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1045798250 + 1045798251.

It is an arithmetic number, because the mean of its divisors is an integer number (1045798251).

Almost surely, 2^2091596501 is an apocalyptic number.

It is an amenable number.

2091596501 is a deficient number, since it is larger than the sum of its proper divisors (1).

2091596501 is an equidigital number, since it uses as much as digits as its factorization.

2091596501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24300, while the sum is 38.

The square root of 2091596501 is about 45733.9753465626. The cubic root of 2091596501 is about 1278.8687313101.

The spelling of 2091596501 in words is "two billion, ninety-one million, five hundred ninety-six thousand, five hundred one".