53909875 has 32 divisors (see below), whose sum is σ = 70394688. Its totient is φ = 41184000.

The previous prime is 53909833. The next prime is 53909879. The reversal of 53909875 is 57890935.

It is not a de Polignac number, because 53909875 - 2¹¹ = 53907827 is a prime.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53909879) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 343297 + ... + 343453.

It is an arithmetic number, because the mean of its divisors is an integer number (2199834).

Almost surely, 2^53909875 is an apocalyptic number.

53909875 is the 3925-th nonagonal number.

53909875 is a deficient number, since it is larger than the sum of its proper divisors (16484813).

53909875 is a wasteful number, since it uses less digits than its factorization.

53909875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 46.

The square root of 53909875 is about 7342.3344380381. The cubic root of 53909875 is about 377.7659193862.

The spelling of 53909875 in words is "fifty-three million, nine hundred nine thousand, eight hundred seventy-five".