53259843939 has 16 divisors (see below), whose sum is σ = 74771614080. Its totient is φ = 33628366080.

The previous prime is 53259843929. The next prime is 53259843971. The reversal of 53259843939 is 93934895235.

It is a happy number.

It is not a de Polignac number, because 53259843939 - 2⁷ = 53259843811 is a prime.

It is a super-2 number, since 2×53259843939² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53259843929) 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 15 ways as a sum of consecutive naturals, for example, 77004 + ... + 335334.

It is an arithmetic number, because the mean of its divisors is an integer number (4673225880).

Almost surely, 2^53259843939 is an apocalyptic number.

53259843939 is a deficient number, since it is larger than the sum of its proper divisors (21511770141).

53259843939 is a wasteful number, since it uses less digits than its factorization.

53259843939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261970.

The product of its digits is 31492800, while the sum is 60.

The spelling of 53259843939 in words is "fifty-three billion, two hundred fifty-nine million, eight hundred forty-three thousand, nine hundred thirty-nine".