65257841 has 6 divisors (see below), whose sum is σ = 71729826. Its totient is φ = 59325200.

The previous prime is 65257823. The next prime is 65257847. The reversal of 65257841 is 14875256.

It can be written as a sum of positive squares in only one way, i.e., 52867441 + 12390400 = 7271^2 + 3520^2 .

It is a de Polignac number, because none of the positive numbers 2^k-65257841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65257795 and 65257804.

It is not an unprimeable number, because it can be changed into a prime (65257847) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 269540 + ... + 269781.

It is an arithmetic number, because the mean of its divisors is an integer number (11954971).

Almost surely, 2^65257841 is an apocalyptic number.

It is an amenable number.

65257841 is a deficient number, since it is larger than the sum of its proper divisors (6471985).

65257841 is a wasteful number, since it uses less digits than its factorization.

65257841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539343 (or 539332 counting only the distinct ones).

The product of its digits is 67200, while the sum is 38.

The square root of 65257841 is about 8078.2325418374. The cubic root of 65257841 is about 402.6035195329.

The spelling of 65257841 in words is "sixty-five million, two hundred fifty-seven thousand, eight hundred forty-one".