55599686 has 4 divisors (see below), whose sum is σ = 83399532. Its totient is φ = 27799842.

The previous prime is 55599683. The next prime is 55599689. The reversal of 55599686 is 68699555.

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

It is an interprime number because it is at equal distance from previous prime (55599683) and next prime (55599689).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55599683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13899920 + ... + 13899923.

It is an arithmetic number, because the mean of its divisors is an integer number (20849883).

Almost surely, 2^55599686 is an apocalyptic number.

55599686 is a deficient number, since it is larger than the sum of its proper divisors (27799846).

55599686 is a wasteful number, since it uses less digits than its factorization.

55599686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27799845.

The product of its digits is 2916000, while the sum is 53.

The square root of 55599686 is about 7456.5196975533. The cubic root of 55599686 is about 381.6724209409.

The spelling of 55599686 in words is "fifty-five million, five hundred ninety-nine thousand, six hundred eighty-six".