20048261 has 8 divisors (see below), whose sum is σ = 20358360. Its totient is φ = 19740672.

The previous prime is 20048243. The next prime is 20048267. The reversal of 20048261 is 16284002.

It can be written as a sum of positive squares in 4 ways, for example, as 1943236 + 18105025 = 1394^2 + 4255^2 .

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 20048261 - 2¹⁴ = 20031877 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 (20048267) 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, 20561 + ... + 21513.

It is an arithmetic number, because the mean of its divisors is an integer number (2544795).

Almost surely, 2^20048261 is an apocalyptic number.

It is an amenable number.

20048261 is a deficient number, since it is larger than the sum of its proper divisors (310099).

20048261 is a wasteful number, since it uses less digits than its factorization.

20048261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 20048261 is about 4477.5284477042. The cubic root of 20048261 is about 271.6599204584.

The spelling of 20048261 in words is "twenty million, forty-eight thousand, two hundred sixty-one".