55554438 has 8 divisors (see below), whose sum is σ = 111108888. Its totient is φ = 18518144.

The previous prime is 55554383. The next prime is 55554479. The reversal of 55554438 is 83445555.

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

55554438 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 55554396 and 55554405.

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, 4629531 + ... + 4629542.

It is an arithmetic number, because the mean of its divisors is an integer number (13888611).

Almost surely, 2^55554438 is an apocalyptic number.

55554438 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.

55554438 is a wasteful number, since it uses less digits than its factorization.

55554438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9259078.

The product of its digits is 240000, while the sum is 39.

The square root of 55554438 is about 7453.4849567166. The cubic root of 55554438 is about 381.5688556038.

The spelling of 55554438 in words is "fifty-five million, five hundred fifty-four thousand, four hundred thirty-eight".