55056406 has 4 divisors (see below), whose sum is σ = 82584612. Its totient is φ = 27528202.

The previous prime is 55056401. The next prime is 55056427. The reversal of 55056406 is 60465055.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) 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 (55056401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13764100 + ... + 13764103.

It is an arithmetic number, because the mean of its divisors is an integer number (20646153).

Almost surely, 2^55056406 is an apocalyptic number.

55056406 is a deficient number, since it is larger than the sum of its proper divisors (27528206).

55056406 is a wasteful number, since it uses less digits than its factorization.

55056406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27528205.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 55056406 is about 7420.0004043127. Note that the first 3 decimals coincide. The cubic root of 55056406 is about 380.4252073169.

It can be divided in two parts, 5505 and 6406, that added together give a palindrome (11911).

The spelling of 55056406 in words is "fifty-five million, fifty-six thousand, four hundred six".