65051501 has 4 divisors (see below), whose sum is σ = 65627292. Its totient is φ = 64475712.

The previous prime is 65051491. The next prime is 65051509. The reversal of 65051501 is 10515056.

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 329476 + 64722025 = 574^2 + 8045^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65051501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65051509) 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, 287726 + ... + 287951.

It is an arithmetic number, because the mean of its divisors is an integer number (16406823).

Almost surely, 2^65051501 is an apocalyptic number.

It is an amenable number.

65051501 is a deficient number, since it is larger than the sum of its proper divisors (575791).

65051501 is a wasteful number, since it uses less digits than its factorization.

65051501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575790.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 65051501 is about 8065.4510723208. The cubic root of 65051501 is about 402.1787382857.

Adding to 65051501 its reverse (10515056), we get a palindrome (75566557).

The spelling of 65051501 in words is "sixty-five million, fifty-one thousand, five hundred one".