55324019 has 2 divisors, whose sum is σ = 55324020. Its totient is φ = 55324018.

The previous prime is 55324007. The next prime is 55324043. The reversal of 55324019 is 91042355.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55324019 - 2¹² = 55319923 is a prime.

It is a super-2 number, since 2×55324019² = 6121494156624722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 55323982 and 55324000.

It is not a weakly prime, because it can be changed into another prime (55324079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27662009 + 27662010.

It is an arithmetic number, because the mean of its divisors is an integer number (27662010).

Almost surely, 2^55324019 is an apocalyptic number.

55324019 is a deficient number, since it is larger than the sum of its proper divisors (1).

55324019 is an equidigital number, since it uses as much as digits as its factorization.

55324019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 55324019 is about 7438.0117639057. The cubic root of 55324019 is about 381.0405896828.

The spelling of 55324019 in words is "fifty-five million, three hundred twenty-four thousand, nineteen".