53819883613 has 4 divisors (see below), whose sum is σ = 55274475100. Its totient is φ = 52365292128.

The previous prime is 53819883599. The next prime is 53819883647. The reversal of 53819883613 is 31638891835.

53819883613 = 164042² + 164043².

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 26909777764 + 26910105849 = 164042^2 + 164043^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53819883613 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 (53819883913) 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, 727295688 + ... + 727295761.

It is an arithmetic number, because the mean of its divisors is an integer number (13818618775).

Almost surely, 2^53819883613 is an apocalyptic number.

53819883613 is the 164043-rd centered square number.

It is an amenable number.

53819883613 is a deficient number, since it is larger than the sum of its proper divisors (1454591487).

53819883613 is a wasteful number, since it uses less digits than its factorization.

53819883613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454591486.

The product of its digits is 3732480, while the sum is 55.

The spelling of 53819883613 in words is "fifty-three billion, eight hundred nineteen million, eight hundred eighty-three thousand, six hundred thirteen".