55831437 has 12 divisors (see below), whose sum is σ = 83632640. Its totient is φ = 37220796.

The previous prime is 55831421. The next prime is 55831439. The reversal of 55831437 is 73413855.

It is not a de Polignac number, because 55831437 - 2⁴ = 55831421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55831439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114637 + ... + 115122.

Almost surely, 2^55831437 is an apocalyptic number.

It is an amenable number.

55831437 is a deficient number, since it is larger than the sum of its proper divisors (27801203).

55831437 is an equidigital number, since it uses as much as digits as its factorization.

55831437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229774 (or 229762 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 55831437 is about 7472.0436963390. The cubic root of 55831437 is about 382.2019823984.

The spelling of 55831437 in words is "fifty-five million, eight hundred thirty-one thousand, four hundred thirty-seven".