65268481 has 4 divisors (see below), whose sum is σ = 67032532. Its totient is φ = 63504432.

The previous prime is 65268451. The next prime is 65268499. The reversal of 65268481 is 18486256.

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 35892081 + 29376400 = 5991^2 + 5420^2 .

It is not a de Polignac number, because 65268481 - 2⁵ = 65268449 is a prime.

It is a super-2 number, since 2×65268481² = 8519949224094722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65268421) 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, 881970 + ... + 882043.

It is an arithmetic number, because the mean of its divisors is an integer number (16758133).

Almost surely, 2^65268481 is an apocalyptic number.

It is an amenable number.

65268481 is a deficient number, since it is larger than the sum of its proper divisors (1764051).

65268481 is a wasteful number, since it uses less digits than its factorization.

65268481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1764050.

The product of its digits is 92160, while the sum is 40.

The square root of 65268481 is about 8078.8910748939. The cubic root of 65268481 is about 402.6253992467.

The spelling of 65268481 in words is "sixty-five million, two hundred sixty-eight thousand, four hundred eighty-one".