55702219 has 2 divisors, whose sum is σ = 55702220. Its totient is φ = 55702218.

The previous prime is 55702193. The next prime is 55702223. The reversal of 55702219 is 91220755.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55702219 - 2¹¹ = 55700171 is a prime.

It is a super-2 number, since 2×55702219² = 6205474403047922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55702249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27851109 + 27851110.

It is an arithmetic number, because the mean of its divisors is an integer number (27851110).

Almost surely, 2^55702219 is an apocalyptic number.

55702219 is a deficient number, since it is larger than the sum of its proper divisors (1).

55702219 is an equidigital number, since it uses as much as digits as its factorization.

55702219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 55702219 is about 7463.3919232478. The cubic root of 55702219 is about 381.9068946086.

The spelling of 55702219 in words is "fifty-five million, seven hundred two thousand, two hundred nineteen".