55698319 has 2 divisors, whose sum is σ = 55698320. Its totient is φ = 55698318.

The previous prime is 55698311. The next prime is 55698323. The reversal of 55698319 is 91389655.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55698319 - 2³ = 55698311 is a prime.

It is a super-2 number, since 2×55698319² = 6204605478851522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55698311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27849159 + 27849160.

It is an arithmetic number, because the mean of its divisors is an integer number (27849160).

Almost surely, 2^55698319 is an apocalyptic number.

55698319 is a deficient number, since it is larger than the sum of its proper divisors (1).

55698319 is an equidigital number, since it uses as much as digits as its factorization.

55698319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 291600, while the sum is 46.

The square root of 55698319 is about 7463.1306433694. The cubic root of 55698319 is about 381.8979813092.

The spelling of 55698319 in words is "fifty-five million, six hundred ninety-eight thousand, three hundred nineteen".