55837449 has 18 divisors (see below), whose sum is σ = 82834206. Its totient is φ = 36223680.

The previous prime is 55837427. The next prime is 55837451. The reversal of 55837449 is 94473855.

It can be written as a sum of positive squares in 3 ways, for example, as 1550025 + 54287424 = 1245^2 + 7368^2 .

It is not a de Polignac number, because 55837449 - 2¹⁷ = 55706377 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55837489) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 143347 + ... + 143735.

Almost surely, 2^55837449 is an apocalyptic number.

It is an amenable number.

55837449 is a deficient number, since it is larger than the sum of its proper divisors (26996757).

55837449 is an equidigital number, since it uses as much as digits as its factorization.

55837449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825 (or 433 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 55837449 is about 7472.4459850841. The cubic root of 55837449 is about 382.2157005709.

The spelling of 55837449 in words is "fifty-five million, eight hundred thirty-seven thousand, four hundred forty-nine".