20054437 has 8 divisors (see below), whose sum is σ = 21711704. Its totient is φ = 18413568.

The previous prime is 20054431. The next prime is 20054467. The reversal of 20054437 is 73445002.

It can be written as a sum of positive squares in 4 ways, for example, as 641601 + 19412836 = 801^2 + 4406^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 20054437 - 2¹⁵ = 20021669 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 (20054431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1488 + ... + 6505.

It is an arithmetic number, because the mean of its divisors is an integer number (2713963).

Almost surely, 2^20054437 is an apocalyptic number.

It is an amenable number.

20054437 is a deficient number, since it is larger than the sum of its proper divisors (1657267).

20054437 is a wasteful number, since it uses less digits than its factorization.

20054437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8199.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 20054437 is about 4478.2180607916. The cubic root of 20054437 is about 271.6878131422.

Adding to 20054437 its reverse (73445002), we get a palindrome (93499439).

The spelling of 20054437 in words is "twenty million, fifty-four thousand, four hundred thirty-seven".