55229519 has 2 divisors, whose sum is σ = 55229520. Its totient is φ = 55229518.

The previous prime is 55229513. The next prime is 55229579. The reversal of 55229519 is 91592255.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55229519 - 2⁸ = 55229263 is a prime.

It is a super-2 number, since 2×55229519² = 6100599537942722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55229513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27614759 + 27614760.

It is an arithmetic number, because the mean of its divisors is an integer number (27614760).

Almost surely, 2^55229519 is an apocalyptic number.

55229519 is a deficient number, since it is larger than the sum of its proper divisors (1).

55229519 is an equidigital number, since it uses as much as digits as its factorization.

55229519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40500, while the sum is 38.

The square root of 55229519 is about 7431.6565448088. The cubic root of 55229519 is about 380.8235118323.

The spelling of 55229519 in words is "fifty-five million, two hundred twenty-nine thousand, five hundred nineteen".