55830419 has 2 divisors, whose sum is σ = 55830420. Its totient is φ = 55830418.

The previous prime is 55830413. The next prime is 55830421. The reversal of 55830419 is 91403855.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55830419 - 2⁴ = 55830403 is a prime.

It is a super-2 number, since 2×55830419² = 6234071371431122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 55830421, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55830413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27915209 + 27915210.

It is an arithmetic number, because the mean of its divisors is an integer number (27915210).

Almost surely, 2^55830419 is an apocalyptic number.

55830419 is a deficient number, since it is larger than the sum of its proper divisors (1).

55830419 is an equidigital number, since it uses as much as digits as its factorization.

55830419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 55830419 is about 7471.9755754419. The cubic root of 55830419 is about 382.1996594301.

The spelling of 55830419 in words is "fifty-five million, eight hundred thirty thousand, four hundred nineteen".