53260681 has 4 divisors (see below), whose sum is σ = 54559764. Its totient is φ = 51961600.

The previous prime is 53260679. The next prime is 53260693. The reversal of 53260681 is 18606235.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27657081 + 25603600 = 5259^2 + 5060^2 .

It is a cyclic number.

It is not a de Polignac number, because 53260681 - 2¹ = 53260679 is a prime.

It is a super-2 number, since 2×53260681² = 5673400281167522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53260621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 649480 + ... + 649561.

It is an arithmetic number, because the mean of its divisors is an integer number (13639941).

Almost surely, 2^53260681 is an apocalyptic number.

It is an amenable number.

53260681 is a deficient number, since it is larger than the sum of its proper divisors (1299083).

53260681 is a wasteful number, since it uses less digits than its factorization.

53260681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299082.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 53260681 is about 7297.9915730288. The cubic root of 53260681 is about 376.2434127241.

The spelling of 53260681 in words is "fifty-three million, two hundred sixty thousand, six hundred eighty-one".