55605499 has 4 divisors (see below), whose sum is σ = 57522960. Its totient is φ = 53688040.

The previous prime is 55605497. The next prime is 55605503. The reversal of 55605499 is 99450655.

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

It is a cyclic number.

It is not a de Polignac number, because 55605499 - 2¹ = 55605497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55605491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 958687 + ... + 958744.

It is an arithmetic number, because the mean of its divisors is an integer number (14380740).

Almost surely, 2^55605499 is an apocalyptic number.

55605499 is a deficient number, since it is larger than the sum of its proper divisors (1917461).

55605499 is a wasteful number, since it uses less digits than its factorization.

55605499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1917460.

The product of its (nonzero) digits is 243000, while the sum is 43.

The square root of 55605499 is about 7456.9094804751. The cubic root of 55605499 is about 381.6857218821.

The spelling of 55605499 in words is "fifty-five million, six hundred five thousand, four hundred ninety-nine".