55343513 has 8 divisors (see below), whose sum is σ = 57350280. Its totient is φ = 53343360.

The previous prime is 55343507. The next prime is 55343521. The reversal of 55343513 is 31534355.

It can be written as a sum of positive squares in 4 ways, for example, as 405769 + 54937744 = 637^2 + 7412^2 .

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 55343513 - 2¹⁶ = 55277977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55343573) 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, 20693 + ... + 23213.

It is an arithmetic number, because the mean of its divisors is an integer number (7168785).

Almost surely, 2^55343513 is an apocalyptic number.

It is an amenable number.

55343513 is a deficient number, since it is larger than the sum of its proper divisors (2006767).

55343513 is a wasteful number, since it uses less digits than its factorization.

55343513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3307.

The product of its digits is 13500, while the sum is 29.

The square root of 55343513 is about 7439.3220793295. The cubic root of 55343513 is about 381.0853389804.

Adding to 55343513 its reverse (31534355), we get a palindrome (86877868).

The spelling of 55343513 in words is "fifty-five million, three hundred forty-three thousand, five hundred thirteen".