55319837 has 2 divisors, whose sum is σ = 55319838. Its totient is φ = 55319836.

The previous prime is 55319827. The next prime is 55319839. The reversal of 55319837 is 73891355.

It is a happy number.

55319837 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38763076 + 16556761 = 6226^2 + 4069^2 .

It is a cyclic number.

It is not a de Polignac number, because 55319837 - 2²² = 51125533 is a prime.

Together with 55319839, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 55319794 and 55319803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55319839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27659918 + 27659919.

It is an arithmetic number, because the mean of its divisors is an integer number (27659919).

Almost surely, 2^55319837 is an apocalyptic number.

It is an amenable number.

55319837 is a deficient number, since it is larger than the sum of its proper divisors (1).

55319837 is an equidigital number, since it uses as much as digits as its factorization.

55319837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113400, while the sum is 41.

The square root of 55319837 is about 7437.7306350795. The cubic root of 55319837 is about 381.0309883563.

The spelling of 55319837 in words is "fifty-five million, three hundred nineteen thousand, eight hundred thirty-seven".