55486609 has 8 divisors (see below), whose sum is σ = 56550240. Its totient is φ = 54427200.

The previous prime is 55486591. The next prime is 55486661. The reversal of 55486609 is 90668455.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55486609 - 2¹⁵ = 55453841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55486009) 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, 40089 + ... + 41449.

It is an arithmetic number, because the mean of its divisors is an integer number (7068780).

Almost surely, 2^55486609 is an apocalyptic number.

55486609 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

55486609 is a deficient number, since it is larger than the sum of its proper divisors (1063631).

55486609 is a wasteful number, since it uses less digits than its factorization.

55486609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111.

The product of its (nonzero) digits is 259200, while the sum is 43.

The square root of 55486609 is about 7448.9334135835. The cubic root of 55486609 is about 381.4135006326.

The spelling of 55486609 in words is "fifty-five million, four hundred eighty-six thousand, six hundred nine".