4942565591 has 2 divisors, whose sum is σ = 4942565592. Its totient is φ = 4942565590.

The previous prime is 4942565483. The next prime is 4942565597. The reversal of 4942565591 is 1955652494.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4942565591 - 2¹⁸ = 4942303447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4942565597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2471282795 + 2471282796.

It is an arithmetic number, because the mean of its divisors is an integer number (2471282796).

Almost surely, 2^4942565591 is an apocalyptic number.

4942565591 is a deficient number, since it is larger than the sum of its proper divisors (1).

4942565591 is an equidigital number, since it uses as much as digits as its factorization.

4942565591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944000, while the sum is 50.

The square root of 4942565591 is about 70303.3825004174. The cubic root of 4942565591 is about 1703.4032850750.

The spelling of 4942565591 in words is "four billion, nine hundred forty-two million, five hundred sixty-five thousand, five hundred ninety-one".