55493513 has 4 divisors (see below), whose sum is σ = 55834128. Its totient is φ = 55152900.

The previous prime is 55493507. The next prime is 55493527. The reversal of 55493513 is 31539455.

55493513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55493513 - 2⁴ = 55493497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55493563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170063 + ... + 170388.

It is an arithmetic number, because the mean of its divisors is an integer number (13958532).

Almost surely, 2^55493513 is an apocalyptic number.

It is an amenable number.

55493513 is a deficient number, since it is larger than the sum of its proper divisors (340615).

55493513 is a wasteful number, since it uses less digits than its factorization.

55493513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340614.

The product of its digits is 40500, while the sum is 35.

The square root of 55493513 is about 7449.3968212198. The cubic root of 55493513 is about 381.4293192817.

The spelling of 55493513 in words is "fifty-five million, four hundred ninety-three thousand, five hundred thirteen".