53839953 has 6 divisors (see below), whose sum is σ = 77768834. Its totient is φ = 35893296.

The previous prime is 53839943. The next prime is 53839991. The reversal of 53839953 is 35993835.

It can be written as a sum of positive squares in only one way, i.e., 52533504 + 1306449 = 7248^2 + 1143^2 .

It is not a de Polignac number, because 53839953 - 2¹² = 53835857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 53839899 and 53839908.

It is not an unprimeable number, because it can be changed into a prime (53839943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2991100 + ... + 2991117.

Almost surely, 2^53839953 is an apocalyptic number.

It is an amenable number.

53839953 is a deficient number, since it is larger than the sum of its proper divisors (23928881).

53839953 is a wasteful number, since it uses less digits than its factorization.

53839953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5982223 (or 5982220 counting only the distinct ones).

The product of its digits is 437400, while the sum is 45.

The square root of 53839953 is about 7337.5713284438. The cubic root of 53839953 is about 377.6025258415.

The spelling of 53839953 in words is "fifty-three million, eight hundred thirty-nine thousand, nine hundred fifty-three".