55438574 has 8 divisors (see below), whose sum is σ = 83189640. Its totient is φ = 27708696.

The previous prime is 55438553. The next prime is 55438577. The reversal of 55438574 is 47583455.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55438577) 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, 6512 + ... + 12380.

It is an arithmetic number, because the mean of its divisors is an integer number (10398705).

Almost surely, 2^55438574 is an apocalyptic number.

55438574 is a deficient number, since it is larger than the sum of its proper divisors (27751066).

55438574 is a wasteful number, since it uses less digits than its factorization.

55438574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10594.

The product of its digits is 336000, while the sum is 41.

The square root of 55438574 is about 7445.7084283499. The cubic root of 55438574 is about 381.3034050781.

The spelling of 55438574 in words is "fifty-five million, four hundred thirty-eight thousand, five hundred seventy-four".