65490583 has 4 divisors (see below), whose sum is σ = 65616328. Its totient is φ = 65364840.

The previous prime is 65490559. The next prime is 65490661. The reversal of 65490583 is 38509456.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65490583 - 2²¹ = 63393431 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65490533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62088 + ... + 63133.

It is an arithmetic number, because the mean of its divisors is an integer number (16404082).

Almost surely, 2^65490583 is an apocalyptic number.

65490583 is a deficient number, since it is larger than the sum of its proper divisors (125745).

65490583 is a wasteful number, since it uses less digits than its factorization.

65490583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125744.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 65490583 is about 8092.6252230040. The cubic root of 65490583 is about 403.0815799478.

The spelling of 65490583 in words is "sixty-five million, four hundred ninety thousand, five hundred eighty-three".