55456838 has 16 divisors (see below), whose sum is σ = 84978240. Its totient is φ = 27136296.

The previous prime is 55456837. The next prime is 55456853. The reversal of 55456838 is 83865455.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55456837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20573 + ... + 23111.

It is an arithmetic number, because the mean of its divisors is an integer number (5311140).

Almost surely, 2^55456838 is an apocalyptic number.

55456838 is a deficient number, since it is larger than the sum of its proper divisors (29521402).

55456838 is a wasteful number, since it uses less digits than its factorization.

55456838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2771.

The product of its digits is 576000, while the sum is 44.

The square root of 55456838 is about 7446.9348056768. The cubic root of 55456838 is about 381.3452734034.

The spelling of 55456838 in words is "fifty-five million, four hundred fifty-six thousand, eight hundred thirty-eight".