55810037 has 2 divisors, whose sum is σ = 55810038. Its totient is φ = 55810036.

The previous prime is 55810021. The next prime is 55810039. The reversal of 55810037 is 73001855.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44209201 + 11600836 = 6649^2 + 3406^2 .

It is a cyclic number.

It is not a de Polignac number, because 55810037 - 2⁴ = 55810021 is a prime.

It is a super-2 number, since 2×55810037² = 6229520459882738, which contains 22 as substring.

Together with 55810039, 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 = 55809991 and 55810009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55810039) 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, 27905018 + 27905019.

It is an arithmetic number, because the mean of its divisors is an integer number (27905019).

Almost surely, 2^55810037 is an apocalyptic number.

It is an amenable number.

55810037 is a deficient number, since it is larger than the sum of its proper divisors (1).

55810037 is an equidigital number, since it uses as much as digits as its factorization.

55810037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 55810037 is about 7470.6115546185. The cubic root of 55810037 is about 382.1531439178.

The spelling of 55810037 in words is "fifty-five million, eight hundred ten thousand, thirty-seven".