55684438 has 8 divisors (see below), whose sum is σ = 83901888. Its totient is φ = 27717144.

The previous prime is 55684427. The next prime is 55684439. The reversal of 55684438 is 83448655.

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

It is a junction number, because it is equal to n+sod(n) for n = 55684394 and 55684403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55684439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61981 + ... + 62872.

It is an arithmetic number, because the mean of its divisors is an integer number (10487736).

Almost surely, 2^55684438 is an apocalyptic number.

55684438 is a deficient number, since it is larger than the sum of its proper divisors (28217450).

55684438 is a wasteful number, since it uses less digits than its factorization.

55684438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125078.

The product of its digits is 460800, while the sum is 43.

The square root of 55684438 is about 7462.2006137600. The cubic root of 55684438 is about 381.8662534438.

The spelling of 55684438 in words is "fifty-five million, six hundred eighty-four thousand, four hundred thirty-eight".