55443437 has 8 divisors (see below), whose sum is σ = 63453696. Its totient is φ = 47455632.

The previous prime is 55443433. The next prime is 55443457. The reversal of 55443437 is 73434455.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55443437 - 2² = 55443433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55443397 and 55443406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55443433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68 + ... + 10530.

It is an arithmetic number, because the mean of its divisors is an integer number (7931712).

Almost surely, 2^55443437 is an apocalyptic number.

It is an amenable number.

55443437 is a deficient number, since it is larger than the sum of its proper divisors (8010259).

55443437 is a wasteful number, since it uses less digits than its factorization.

55443437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11227.

The product of its digits is 100800, while the sum is 35.

The square root of 55443437 is about 7446.0349851448. The cubic root of 55443437 is about 381.3145538992.

The spelling of 55443437 in words is "fifty-five million, four hundred forty-three thousand, four hundred thirty-seven".