55738438 has 16 divisors (see below), whose sum is σ = 100581120. Its totient is φ = 22630536.

The previous prime is 55738409. The next prime is 55738447. The reversal of 55738438 is 83483755.

It is a junction number, because it is equal to n+sod(n) for n = 55738394 and 55738403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104506 + ... + 105037.

It is an arithmetic number, because the mean of its divisors is an integer number (6286320).

Almost surely, 2^55738438 is an apocalyptic number.

55738438 is a deficient number, since it is larger than the sum of its proper divisors (44842682).

55738438 is a wasteful number, since it uses less digits than its factorization.

55738438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209571.

The product of its digits is 403200, while the sum is 43.

The square root of 55738438 is about 7465.8179726002. The cubic root of 55738438 is about 381.9896518674.

The spelling of 55738438 in words is "fifty-five million, seven hundred thirty-eight thousand, four hundred thirty-eight".