53837021 has 8 divisors (see below), whose sum is σ = 63649920. Its totient is φ = 44554608.

The previous prime is 53837009. The next prime is 53837023. The reversal of 53837021 is 12073835.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53837021 - 2¹⁰ = 53835997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53837023) 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 7 ways as a sum of consecutive naturals, for example, 132401 + ... + 132806.

It is an arithmetic number, because the mean of its divisors is an integer number (7956240).

Almost surely, 2^53837021 is an apocalyptic number.

It is an amenable number.

53837021 is a deficient number, since it is larger than the sum of its proper divisors (9812899).

53837021 is a wasteful number, since it uses less digits than its factorization.

53837021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265243.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 53837021 is about 7337.3715320951. The cubic root of 53837021 is about 377.5956712621.

The spelling of 53837021 in words is "fifty-three million, eight hundred thirty-seven thousand, twenty-one".