65498959 has 4 divisors (see below), whose sum is σ = 66174304. Its totient is φ = 64823616.

The previous prime is 65498957. The next prime is 65498969. The reversal of 65498959 is 95989456.

It is a happy number.

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 65498959 - 2¹ = 65498957 is a prime.

It is a super-2 number, since 2×65498959² = 8580227260167362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65498957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337527 + ... + 337720.

It is an arithmetic number, because the mean of its divisors is an integer number (16543576).

Almost surely, 2^65498959 is an apocalyptic number.

65498959 is a deficient number, since it is larger than the sum of its proper divisors (675345).

65498959 is an equidigital number, since it uses as much as digits as its factorization.

65498959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675344.

The product of its digits is 3499200, while the sum is 55.

The square root of 65498959 is about 8093.1427146690. The cubic root of 65498959 is about 403.0987634228.

The spelling of 65498959 in words is "sixty-five million, four hundred ninety-eight thousand, nine hundred fifty-nine".