55552319 has 2 divisors, whose sum is σ = 55552320. Its totient is φ = 55552318.

The previous prime is 55552309. The next prime is 55552327. The reversal of 55552319 is 91325555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55552319 - 2⁴ = 55552303 is a prime.

It is a super-2 number, since 2×55552319² = 6172120292555522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55552309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27776159 + 27776160.

It is an arithmetic number, because the mean of its divisors is an integer number (27776160).

Almost surely, 2^55552319 is an apocalyptic number.

55552319 is a deficient number, since it is larger than the sum of its proper divisors (1).

55552319 is an equidigital number, since it uses as much as digits as its factorization.

55552319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33750, while the sum is 35.

The square root of 55552319 is about 7453.3428070900. The cubic root of 55552319 is about 381.5640041781.

The spelling of 55552319 in words is "fifty-five million, five hundred fifty-two thousand, three hundred nineteen".