55888513 has 4 divisors (see below), whose sum is σ = 55904688. Its totient is φ = 55872340.

The previous prime is 55888501. The next prime is 55888523. The reversal of 55888513 is 31588855.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31588855 = 5 ⋅6317771.

It is a cyclic number.

It is not a de Polignac number, because 55888513 - 2¹⁷ = 55757441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55888513.

It is not an unprimeable number, because it can be changed into a prime (55888523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 583 + ... + 10588.

It is an arithmetic number, because the mean of its divisors is an integer number (13976172).

Almost surely, 2^55888513 is an apocalyptic number.

It is an amenable number.

55888513 is a deficient number, since it is larger than the sum of its proper divisors (16175).

55888513 is a wasteful number, since it uses less digits than its factorization.

55888513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16174.

The product of its digits is 192000, while the sum is 43.

The square root of 55888513 is about 7475.8620238739. The cubic root of 55888513 is about 382.3321786470.

The spelling of 55888513 in words is "fifty-five million, eight hundred eighty-eight thousand, five hundred thirteen".