55587685 has 8 divisors (see below), whose sum is σ = 67055616. Its totient is φ = 44236560.

The previous prime is 55587683. The next prime is 55587703. The reversal of 55587685 is 58678555.

It is a happy number.

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

It is not a de Polignac number, because 55587685 - 2¹ = 55587683 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 (55587683) 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, 28149 + ... + 30058.

It is an arithmetic number, because the mean of its divisors is an integer number (8381952).

Almost surely, 2^55587685 is an apocalyptic number.

It is an amenable number.

55587685 is a deficient number, since it is larger than the sum of its proper divisors (11467931).

55587685 is a wasteful number, since it uses less digits than its factorization.

55587685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58403.

The product of its digits is 1680000, while the sum is 49.

The square root of 55587685 is about 7455.7149221252. The cubic root of 55587685 is about 381.6449580740.

The spelling of 55587685 in words is "fifty-five million, five hundred eighty-seven thousand, six hundred eighty-five".