55403606 has 4 divisors (see below), whose sum is σ = 83105412. Its totient is φ = 27701802.

The previous prime is 55403599. The next prime is 55403609. The reversal of 55403606 is 60630455.

55403606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60630455 = 5 ⋅12126091.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55403609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13850900 + ... + 13850903.

It is an arithmetic number, because the mean of its divisors is an integer number (20776353).

Almost surely, 2^55403606 is an apocalyptic number.

55403606 is a deficient number, since it is larger than the sum of its proper divisors (27701806).

55403606 is a wasteful number, since it uses less digits than its factorization.

55403606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27701805.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 55403606 is about 7443.3598596333. The cubic root of 55403606 is about 381.2232189017.

The spelling of 55403606 in words is "fifty-five million, four hundred three thousand, six hundred six".