55160509 has 8 divisors (see below), whose sum is σ = 58207680. Its totient is φ = 52167456.

The previous prime is 55160503. The next prime is 55160519. The reversal of 55160509 is 90506155.

It is a happy number.

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 55160509 - 2⁹ = 55159997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55160503) 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, 11427 + ... + 15520.

It is an arithmetic number, because the mean of its divisors is an integer number (7275960).

Almost surely, 2^55160509 is an apocalyptic number.

It is an amenable number.

55160509 is a deficient number, since it is larger than the sum of its proper divisors (3047171).

55160509 is a wasteful number, since it uses less digits than its factorization.

55160509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27059.

The product of its (nonzero) digits is 6750, while the sum is 31.

The square root of 55160509 is about 7427.0121179381. The cubic root of 55160509 is about 380.6648310843.

The spelling of 55160509 in words is "fifty-five million, one hundred sixty thousand, five hundred nine".