55434193 has 2 divisors, whose sum is σ = 55434194. Its totient is φ = 55434192.

The previous prime is 55434187. The next prime is 55434227. The reversal of 55434193 is 39143455.

It is an a-pointer prime, because the next prime (55434227) can be obtained adding 55434193 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33315984 + 22118209 = 5772^2 + 4703^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55434193 is a prime.

It is a super-2 number, since 2×55434193² = 6145899507122498, which contains 22 as substring.

It is equal to p_3306589 and since 55434193 and 3306589 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (55434133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27717096 + 27717097.

It is an arithmetic number, because the mean of its divisors is an integer number (27717097).

Almost surely, 2^55434193 is an apocalyptic number.

It is an amenable number.

55434193 is a deficient number, since it is larger than the sum of its proper divisors (1).

55434193 is an equidigital number, since it uses as much as digits as its factorization.

55434193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 34.

The square root of 55434193 is about 7445.4142262201. The cubic root of 55434193 is about 381.2933607227.

The spelling of 55434193 in words is "fifty-five million, four hundred thirty-four thousand, one hundred ninety-three".