65489013 has 16 divisors (see below), whose sum is σ = 99388800. Its totient is φ = 42593760.

The previous prime is 65489003. The next prime is 65489023. The reversal of 65489013 is 31098456.

It is an interprime number because it is at equal distance from previous prime (65489003) and next prime (65489023).

It is not a de Polignac number, because 65489013 - 2¹⁸ = 65226869 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65489003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28473 + ... + 30686.

It is an arithmetic number, because the mean of its divisors is an integer number (6211800).

Almost surely, 2^65489013 is an apocalyptic number.

It is an amenable number.

65489013 is a deficient number, since it is larger than the sum of its proper divisors (33899787).

65489013 is a wasteful number, since it uses less digits than its factorization.

65489013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59209 (or 59203 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 65489013 is about 8092.5282205254. The cubic root of 65489013 is about 403.0783589089.

The spelling of 65489013 in words is "sixty-five million, four hundred eighty-nine thousand, thirteen".