53216958479 has 4 divisors (see below), whose sum is σ = 53743859160. Its totient is φ = 52690057800.

The previous prime is 53216958439. The next prime is 53216958499. The reversal of 53216958479 is 97485961235.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53216958479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53216958409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263450189 + ... + 263450390.

It is an arithmetic number, because the mean of its divisors is an integer number (13435964790).

Almost surely, 2^53216958479 is an apocalyptic number.

53216958479 is a deficient number, since it is larger than the sum of its proper divisors (526900681).

53216958479 is a wasteful number, since it uses less digits than its factorization.

53216958479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526900680.

The product of its digits is 16329600, while the sum is 59.

The spelling of 53216958479 in words is "fifty-three billion, two hundred sixteen million, nine hundred fifty-eight thousand, four hundred seventy-nine".