55480319 has 2 divisors, whose sum is σ = 55480320. Its totient is φ = 55480318.

The previous prime is 55480309. The next prime is 55480349. The reversal of 55480319 is 91308455.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55480319 - 2⁴ = 55480303 is a prime.

It is a super-2 number, since 2×55480319² = 6156131592683522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55480309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27740159 + 27740160.

It is an arithmetic number, because the mean of its divisors is an integer number (27740160).

Almost surely, 2^55480319 is an apocalyptic number.

55480319 is a deficient number, since it is larger than the sum of its proper divisors (1).

55480319 is an equidigital number, since it uses as much as digits as its factorization.

55480319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 55480319 is about 7448.5111935205. The cubic root of 55480319 is about 381.3990876561.

The spelling of 55480319 in words is "fifty-five million, four hundred eighty thousand, three hundred nineteen".