55442408 has 16 divisors (see below), whose sum is σ = 118805280. Its totient is φ = 23761008.

The previous prime is 55442407. The next prime is 55442411. The reversal of 55442408 is 80424455.

It is not an unprimeable number, because it can be changed into a prime (55442407) 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 in 3 ways as a sum of consecutive naturals, for example, 494966 + ... + 495077.

It is an arithmetic number, because the mean of its divisors is an integer number (7425330).

Almost surely, 2^55442408 is an apocalyptic number.

It is an amenable number.

55442408 is an abundant number, since it is smaller than the sum of its proper divisors (63362872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55442408 is a wasteful number, since it uses less digits than its factorization.

55442408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990056 (or 990052 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

The square root of 55442408 is about 7445.9658876468. The cubic root of 55442408 is about 381.3121948878.

The spelling of 55442408 in words is "fifty-five million, four hundred forty-two thousand, four hundred eight".