53437391 has 24 divisors (see below), whose sum is σ = 64791216. Its totient is φ = 43908480.

The previous prime is 53437357. The next prime is 53437393. The reversal of 53437391 is 19373435.

It is not a de Polignac number, because 53437391 - 2¹⁰ = 53436367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53437393) 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 23 ways as a sum of consecutive naturals, for example, 134405 + ... + 134801.

It is an arithmetic number, because the mean of its divisors is an integer number (2699634).

Almost surely, 2^53437391 is an apocalyptic number.

53437391 is a deficient number, since it is larger than the sum of its proper divisors (11353825).

53437391 is a wasteful number, since it uses less digits than its factorization.

53437391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519 (or 512 counting only the distinct ones).

The product of its digits is 34020, while the sum is 35.

The square root of 53437391 is about 7310.0883031602. The cubic root of 53437391 is about 376.6590575468.

The spelling of 53437391 in words is "fifty-three million, four hundred thirty-seven thousand, three hundred ninety-one".