55695223 has 2 divisors, whose sum is σ = 55695224. Its totient is φ = 55695222.

The previous prime is 55695193. The next prime is 55695229. The reversal of 55695223 is 32259655.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55695223 - 2¹³ = 55687031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55695229) 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, 27847611 + 27847612.

It is an arithmetic number, because the mean of its divisors is an integer number (27847612).

Almost surely, 2^55695223 is an apocalyptic number.

55695223 is a deficient number, since it is larger than the sum of its proper divisors (1).

55695223 is an equidigital number, since it uses as much as digits as its factorization.

55695223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81000, while the sum is 37.

The square root of 55695223 is about 7462.9232208298. The cubic root of 55695223 is about 381.8909052246.

The spelling of 55695223 in words is "fifty-five million, six hundred ninety-five thousand, two hundred twenty-three".