65488505 has 16 divisors (see below), whose sum is σ = 83545344. Its totient is φ = 49109760.

The previous prime is 65488487. The next prime is 65488529. The reversal of 65488505 is 50588456.

It is a de Polignac number, because none of the positive numbers 2^k-65488505 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21614 + ... + 24456.

It is an arithmetic number, because the mean of its divisors is an integer number (5221584).

Almost surely, 2^65488505 is an apocalyptic number.

It is an amenable number.

65488505 is a deficient number, since it is larger than the sum of its proper divisors (18056839).

65488505 is a wasteful number, since it uses less digits than its factorization.

65488505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3136.

The product of its (nonzero) digits is 192000, while the sum is 41.

The square root of 65488505 is about 8092.4968334872. The cubic root of 65488505 is about 403.0773166764.

The spelling of 65488505 in words is "sixty-five million, four hundred eighty-eight thousand, five hundred five".