55605206 has 4 divisors (see below), whose sum is σ = 83407812. Its totient is φ = 27802602.

The previous prime is 55605203. The next prime is 55605211. The reversal of 55605206 is 60250655.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55605203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13901300 + ... + 13901303.

It is an arithmetic number, because the mean of its divisors is an integer number (20851953).

Almost surely, 2^55605206 is an apocalyptic number.

55605206 is a deficient number, since it is larger than the sum of its proper divisors (27802606).

55605206 is a wasteful number, since it uses less digits than its factorization.

55605206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27802605.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 55605206 is about 7456.8898342405. The cubic root of 55605206 is about 381.6850514801.

The spelling of 55605206 in words is "fifty-five million, six hundred five thousand, two hundred six".