65242479 has 4 divisors (see below), whose sum is σ = 86989976. Its totient is φ = 43494984.

The previous prime is 65242469. The next prime is 65242483. The reversal of 65242479 is 97424256.

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

It is not a de Polignac number, because 65242479 - 2²⁰ = 64193903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65242469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10873744 + ... + 10873749.

It is an arithmetic number, because the mean of its divisors is an integer number (21747494).

Almost surely, 2^65242479 is an apocalyptic number.

65242479 is a deficient number, since it is larger than the sum of its proper divisors (21747497).

65242479 is a wasteful number, since it uses less digits than its factorization.

65242479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21747496.

The product of its digits is 120960, while the sum is 39.

The square root of 65242479 is about 8077.2816590732. The cubic root of 65242479 is about 402.5719254718.

It can be divided in two parts, 6524247 and 9, that added together give a palindrome (6524256).

The spelling of 65242479 in words is "sixty-five million, two hundred forty-two thousand, four hundred seventy-nine".