53913983 has 4 divisors (see below), whose sum is σ = 54417960. Its totient is φ = 53410008.

The previous prime is 53913943. The next prime is 53913989. The reversal of 53913983 is 38931935.

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 53913983 - 2¹² = 53909887 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53913983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53913989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251828 + ... + 252041.

It is an arithmetic number, because the mean of its divisors is an integer number (13604490).

Almost surely, 2^53913983 is an apocalyptic number.

53913983 is a deficient number, since it is larger than the sum of its proper divisors (503977).

53913983 is a wasteful number, since it uses less digits than its factorization.

53913983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503976.

The product of its digits is 87480, while the sum is 41.

The square root of 53913983 is about 7342.6141802494. The cubic root of 53913983 is about 377.7755145546.

The spelling of 53913983 in words is "fifty-three million, nine hundred thirteen thousand, nine hundred eighty-three".