65252641 has 4 divisors (see below), whose sum is σ = 65830212. Its totient is φ = 64675072.

The previous prime is 65252623. The next prime is 65252651. The reversal of 65252641 is 14625256.

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 26998416 + 38254225 = 5196^2 + 6185^2 .

It is a cyclic number.

It is not a de Polignac number, because 65252641 - 2⁵ = 65252609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65252611) 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, 288616 + ... + 288841.

It is an arithmetic number, because the mean of its divisors is an integer number (16457553).

Almost surely, 2^65252641 is an apocalyptic number.

It is an amenable number.

65252641 is a deficient number, since it is larger than the sum of its proper divisors (577571).

65252641 is a wasteful number, since it uses less digits than its factorization.

65252641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577570.

The product of its digits is 14400, while the sum is 31.

The square root of 65252641 is about 8077.9106828437. The cubic root of 65252641 is about 402.5928255745.

Adding to 65252641 its reverse (14625256), we get a palindrome (79877897).

The spelling of 65252641 in words is "sixty-five million, two hundred fifty-two thousand, six hundred forty-one".