55328837 has 2 divisors, whose sum is σ = 55328838. Its totient is φ = 55328836.

The previous prime is 55328821. The next prime is 55328849. The reversal of 55328837 is 73882355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51638596 + 3690241 = 7186^2 + 1921^2 .

It is a cyclic number.

It is not a de Polignac number, because 55328837 - 2⁴ = 55328821 is a prime.

It is a super-2 number, since 2×55328837² = 6122560407545138, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55328794 and 55328803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55328807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27664418 + 27664419.

It is an arithmetic number, because the mean of its divisors is an integer number (27664419).

Almost surely, 2^55328837 is an apocalyptic number.

It is an amenable number.

55328837 is a deficient number, since it is larger than the sum of its proper divisors (1).

55328837 is an equidigital number, since it uses as much as digits as its factorization.

55328837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 201600, while the sum is 41.

The square root of 55328837 is about 7438.3356337288. The cubic root of 55328837 is about 381.0516505824.

It can be divided in two parts, 55328 and 837, that added together give a palindrome (56165).

The spelling of 55328837 in words is "fifty-five million, three hundred twenty-eight thousand, eight hundred thirty-seven".