55000135 has 4 divisors (see below), whose sum is σ = 66000168. Its totient is φ = 44000104.

The previous prime is 55000129. The next prime is 55000163. The reversal of 55000135 is 53100055.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55000135 - 2¹⁹ = 54475847 is a prime.

It is a Duffinian number.

55000135 is a modest number, since divided by 135 gives 55 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5500009 + ... + 5500018.

It is an arithmetic number, because the mean of its divisors is an integer number (16500042).

Almost surely, 2^55000135 is an apocalyptic number.

55000135 is a deficient number, since it is larger than the sum of its proper divisors (11000033).

55000135 is a wasteful number, since it uses less digits than its factorization.

55000135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11000032.

The product of its (nonzero) digits is 375, while the sum is 19.

The square root of 55000135 is about 7416.2075887882. The cubic root of 55000135 is about 380.2955572265.

The spelling of 55000135 in words is "fifty-five million, one hundred thirty-five", and thus it is an aban number.