2551240019 has 2 divisors, whose sum is σ = 2551240020. Its totient is φ = 2551240018.

The previous prime is 2551240007. The next prime is 2551240033. The reversal of 2551240019 is 9100421552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2551240019 - 2²⁴ = 2534462803 is a prime.

It is a super-2 number, since 2×2551240019² = 13017651269094240722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2551239973 and 2551240000.

It is not a weakly prime, because it can be changed into another prime (2551240619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275620009 + 1275620010.

It is an arithmetic number, because the mean of its divisors is an integer number (1275620010).

Almost surely, 2^2551240019 is an apocalyptic number.

2551240019 is a deficient number, since it is larger than the sum of its proper divisors (1).

2551240019 is an equidigital number, since it uses as much as digits as its factorization.

2551240019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 2551240019 is about 50509.8012171895. The cubic root of 2551240019 is about 1366.4186245132.

The spelling of 2551240019 in words is "two billion, five hundred fifty-one million, two hundred forty thousand, nineteen".