55730419 has 2 divisors, whose sum is σ = 55730420. Its totient is φ = 55730418.

The previous prime is 55730407. The next prime is 55730453. The reversal of 55730419 is 91403755.

55730419 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (55730453) can be obtained adding 55730419 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55730419 - 2⁷ = 55730291 is a prime.

It is a super-2 number, since 2×55730419² = 6211759203831122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55730459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27865209 + 27865210.

It is an arithmetic number, because the mean of its divisors is an integer number (27865210).

Almost surely, 2^55730419 is an apocalyptic number.

55730419 is a deficient number, since it is larger than the sum of its proper divisors (1).

55730419 is an equidigital number, since it uses as much as digits as its factorization.

55730419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 55730419 is about 7465.2809056324. The cubic root of 55730419 is about 381.9713322419.

It can be divided in two parts, 557 and 30419, that added together give a square (30976 = 176²).

The spelling of 55730419 in words is "fifty-five million, seven hundred thirty thousand, four hundred nineteen".