65266505 has 8 divisors (see below), whose sum is σ = 78388224. Its totient is φ = 52167600.

The previous prime is 65266489. The next prime is 65266507. The reversal of 65266505 is 50566256.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65266505 - 2⁴ = 65266489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65266507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1400 + ... + 11510.

It is an arithmetic number, because the mean of its divisors is an integer number (9798528).

Almost surely, 2^65266505 is an apocalyptic number.

It is an amenable number.

65266505 is a deficient number, since it is larger than the sum of its proper divisors (13121719).

65266505 is a wasteful number, since it uses less digits than its factorization.

65266505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11407.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 65266505 is about 8078.7687799565. The cubic root of 65266505 is about 402.6213360511.

It can be divided in two parts, 6526 and 6505, that added together give a palindrome (13031).

The spelling of 65266505 in words is "sixty-five million, two hundred sixty-six thousand, five hundred five".