55422438 has 8 divisors (see below), whose sum is σ = 110844888. Its totient is φ = 18474144.

The previous prime is 55422407. The next prime is 55422443. The reversal of 55422438 is 83422455.

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

55422438 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 55422399 and 55422408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4618531 + ... + 4618542.

It is an arithmetic number, because the mean of its divisors is an integer number (13855611).

Almost surely, 2^55422438 is an apocalyptic number.

55422438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55422438 is a wasteful number, since it uses less digits than its factorization.

55422438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9237078.

The product of its digits is 38400, while the sum is 33.

The square root of 55422438 is about 7444.6247722770. The cubic root of 55422438 is about 381.2664073204.

The spelling of 55422438 in words is "fifty-five million, four hundred twenty-two thousand, four hundred thirty-eight".