55664135 has 4 divisors (see below), whose sum is σ = 66796968. Its totient is φ = 44531304.

The previous prime is 55664131. The next prime is 55664143. The reversal of 55664135 is 53146655.

55664135 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 an emirpimes, since its reverse is a distinct semiprime: 53146655 = 5 ⋅10629331.

It is a cyclic number.

It is not a de Polignac number, because 55664135 - 2² = 55664131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55664095 and 55664104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55664131) 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, 5566409 + ... + 5566418.

It is an arithmetic number, because the mean of its divisors is an integer number (16699242).

Almost surely, 2^55664135 is an apocalyptic number.

55664135 is a deficient number, since it is larger than the sum of its proper divisors (11132833).

55664135 is a wasteful number, since it uses less digits than its factorization.

55664135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11132832.

The product of its digits is 54000, while the sum is 35.

The square root of 55664135 is about 7460.8401001496. The cubic root of 55664135 is about 381.8198372858.

The spelling of 55664135 in words is "fifty-five million, six hundred sixty-four thousand, one hundred thirty-five".