53218619 has 16 divisors (see below), whose sum is σ = 59304960. Its totient is φ = 47498880.

The previous prime is 53218603. The next prime is 53218643. The reversal of 53218619 is 91681235.

53218619 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 53218619 - 2⁴ = 53218603 is a prime.

It is a super-2 number, since 2×53218619² = 5664442816534322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53218019) 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 15 ways as a sum of consecutive naturals, for example, 50702 + ... + 51740.

It is an arithmetic number, because the mean of its divisors is an integer number (3706560).

Almost surely, 2^53218619 is an apocalyptic number.

53218619 is a deficient number, since it is larger than the sum of its proper divisors (6086341).

53218619 is a wasteful number, since it uses less digits than its factorization.

53218619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210.

The product of its digits is 12960, while the sum is 35.

The square root of 53218619 is about 7295.1092520949. The cubic root of 53218619 is about 376.1443420277.

The spelling of 53218619 in words is "fifty-three million, two hundred eighteen thousand, six hundred nineteen".