55134505 has 4 divisors (see below), whose sum is σ = 66161412. Its totient is φ = 44107600.

The previous prime is 55134439. The next prime is 55134517. The reversal of 55134505 is 50543155.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7469289 + 47665216 = 2733^2 + 6904^2 .

It is not a de Polignac number, because 55134505 - 2⁹ = 55133993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 5513446 + ... + 5513455.

It is an arithmetic number, because the mean of its divisors is an integer number (16540353).

Almost surely, 2^55134505 is an apocalyptic number.

It is an amenable number.

55134505 is a deficient number, since it is larger than the sum of its proper divisors (11026907).

55134505 is a wasteful number, since it uses less digits than its factorization.

55134505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11026906.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 55134505 is about 7425.2612748643. The cubic root of 55134505 is about 380.6050034747.

The spelling of 55134505 in words is "fifty-five million, one hundred thirty-four thousand, five hundred five".