53206905 has 16 divisors (see below), whose sum is σ = 85268160. Its totient is φ = 28331328.

The previous prime is 53206891. The next prime is 53206913. The reversal of 53206905 is 50960235.

It is not a de Polignac number, because 53206905 - 2¹⁰ = 53205881 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8134 + ... + 13136.

It is an arithmetic number, because the mean of its divisors is an integer number (5329260).

Almost surely, 2^53206905 is an apocalyptic number.

It is an amenable number.

53206905 is a deficient number, since it is larger than the sum of its proper divisors (32061255).

53206905 is a wasteful number, since it uses less digits than its factorization.

53206905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5720.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 53206905 is about 7294.3063412500. The cubic root of 53206905 is about 376.1167421750.

The spelling of 53206905 in words is "fifty-three million, two hundred six thousand, nine hundred five".