55351313 has 8 divisors (see below), whose sum is σ = 59135520. Its totient is φ = 51654240.

The previous prime is 55351291. The next prime is 55351319. The reversal of 55351313 is 31315355.

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 55351313 - 2¹⁰ = 55350289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55351319) 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, 20468 + ... + 23013.

It is an arithmetic number, because the mean of its divisors is an integer number (7391940).

Almost surely, 2^55351313 is an apocalyptic number.

It is an amenable number.

55351313 is a deficient number, since it is larger than the sum of its proper divisors (3784207).

55351313 is a wasteful number, since it uses less digits than its factorization.

55351313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43567.

The product of its digits is 3375, while the sum is 26.

The square root of 55351313 is about 7439.8463021759. The cubic root of 55351313 is about 381.1032412653.

Adding to 55351313 its reverse (31315355), we get a palindrome (86666668).

The spelling of 55351313 in words is "fifty-five million, three hundred fifty-one thousand, three hundred thirteen".