65501005 has 8 divisors (see below), whose sum is σ = 78836472. Its totient is φ = 52243968.

The previous prime is 65500993. The next prime is 65501021. The reversal of 65501005 is 50010556.

It can be written as a sum of positive squares in 4 ways, for example, as 18139081 + 47361924 = 4259^2 + 6882^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 65501005 - 2¹¹ = 65498957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17752 + ... + 21121.

It is an arithmetic number, because the mean of its divisors is an integer number (9854559).

Almost surely, 2^65501005 is an apocalyptic number.

It is an amenable number.

65501005 is a deficient number, since it is larger than the sum of its proper divisors (13335467).

65501005 is a wasteful number, since it uses less digits than its factorization.

65501005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39215.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 65501005 is about 8093.2691169885. The cubic root of 65501005 is about 403.1029605963.

The spelling of 65501005 in words is "sixty-five million, five hundred one thousand, five".