2549133619 has 2 divisors, whose sum is σ = 2549133620. Its totient is φ = 2549133618.

The previous prime is 2549133617. The next prime is 2549133659. The reversal of 2549133619 is 9163319452.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2549133619 - 2¹ = 2549133617 is a prime.

It is a super-2 number, since 2×2549133619² = 12996164415032074322, which contains 22 as substring.

Together with 2549133617, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2549133617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1274566809 + 1274566810.

It is an arithmetic number, because the mean of its divisors is an integer number (1274566810).

Almost surely, 2^2549133619 is an apocalyptic number.

2549133619 is a deficient number, since it is larger than the sum of its proper divisors (1).

2549133619 is an equidigital number, since it uses as much as digits as its factorization.

2549133619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 43.

The square root of 2549133619 is about 50488.9455128546. The cubic root of 2549133619 is about 1366.0424653832.

The spelling of 2549133619 in words is "two billion, five hundred forty-nine million, one hundred thirty-three thousand, six hundred nineteen".