53812681 has 8 divisors (see below), whose sum is σ = 58009280. Its totient is φ = 49624272.

The previous prime is 53812679. The next prime is 53812687. The reversal of 53812681 is 18621835.

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 53812681 - 2¹ = 53812679 is a prime.

It is a super-2 number, since 2×53812681² = 5791609272815522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53812687) 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, 23326 + ... + 25528.

It is an arithmetic number, because the mean of its divisors is an integer number (7251160).

Almost surely, 2^53812681 is an apocalyptic number.

It is an amenable number.

53812681 is a deficient number, since it is larger than the sum of its proper divisors (4196599).

53812681 is a wasteful number, since it uses less digits than its factorization.

53812681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4095.

The product of its digits is 11520, while the sum is 34.

The square root of 53812681 is about 7335.7127124772. The cubic root of 53812681 is about 377.5387583555.

The spelling of 53812681 in words is "fifty-three million, eight hundred twelve thousand, six hundred eighty-one".