53437439 has 4 divisors (see below), whose sum is σ = 58295400. Its totient is φ = 48579480.

The previous prime is 53437429. The next prime is 53437457. The reversal of 53437439 is 93473435.

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 53437439 - 2²⁰ = 52388863 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 (53437429) 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, 2428964 + ... + 2428985.

It is an arithmetic number, because the mean of its divisors is an integer number (14573850).

Almost surely, 2^53437439 is an apocalyptic number.

53437439 is a deficient number, since it is larger than the sum of its proper divisors (4857961).

53437439 is a wasteful number, since it uses less digits than its factorization.

53437439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4857960.

The product of its digits is 136080, while the sum is 38.

The square root of 53437439 is about 7310.0915862936. The cubic root of 53437439 is about 376.6591703244.

It can be divided in two parts, 534 and 37439, that added together give a palindrome (37973).

The spelling of 53437439 in words is "fifty-three million, four hundred thirty-seven thousand, four hundred thirty-nine".