55445119 has 2 divisors, whose sum is σ = 55445120. Its totient is φ = 55445118.

The previous prime is 55445099. The next prime is 55445141. The reversal of 55445119 is 91154455.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55445119 - 2¹¹ = 55443071 is a prime.

It is a super-2 number, since 2×55445119² = 6148322441848322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55485119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27722559 + 27722560.

It is an arithmetic number, because the mean of its divisors is an integer number (27722560).

Almost surely, 2^55445119 is an apocalyptic number.

55445119 is a deficient number, since it is larger than the sum of its proper divisors (1).

55445119 is an equidigital number, since it uses as much as digits as its factorization.

55445119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18000, while the sum is 34.

The square root of 55445119 is about 7446.1479303060. The cubic root of 55445119 is about 381.3184098687.

The spelling of 55445119 in words is "fifty-five million, four hundred forty-five thousand, one hundred nineteen".