65245539 has 8 divisors (see below), whose sum is σ = 88420432. Its totient is φ = 42783840.

The previous prime is 65245517. The next prime is 65245561. The reversal of 65245539 is 93554256.

It is an interprime number because it is at equal distance from previous prime (65245517) and next prime (65245561).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65245539 - 2¹² = 65241443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65245497 and 65245506.

It is not an unprimeable number, because it can be changed into a prime (65245039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178084 + ... + 178449.

It is an arithmetic number, because the mean of its divisors is an integer number (11052554).

Almost surely, 2^65245539 is an apocalyptic number.

65245539 is a deficient number, since it is larger than the sum of its proper divisors (23174893).

65245539 is a wasteful number, since it uses less digits than its factorization.

65245539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356597.

The product of its digits is 162000, while the sum is 39.

The square root of 65245539 is about 8077.4710770141. The cubic root of 65245539 is about 402.5782191772.

The spelling of 65245539 in words is "sixty-five million, two hundred forty-five thousand, five hundred thirty-nine".