55316613 has 8 divisors (see below), whose sum is σ = 80460576. Its totient is φ = 33525200.

The previous prime is 55316609. The next prime is 55316663. The reversal of 55316613 is 31661355.

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 55316613 - 2² = 55316609 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55316663) 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, 838098 + ... + 838163.

It is an arithmetic number, because the mean of its divisors is an integer number (10057572).

Almost surely, 2^55316613 is an apocalyptic number.

It is an amenable number.

55316613 is a deficient number, since it is larger than the sum of its proper divisors (25143963).

55316613 is a wasteful number, since it uses less digits than its factorization.

55316613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676275.

The product of its digits is 8100, while the sum is 30.

The square root of 55316613 is about 7437.5138991467. The cubic root of 55316613 is about 381.0235861426.

Adding to 55316613 its reverse (31661355), we get a palindrome (86977968).

The spelling of 55316613 in words is "fifty-five million, three hundred sixteen thousand, six hundred thirteen".