65390485 has 4 divisors (see below), whose sum is σ = 78468588. Its totient is φ = 52312384.

The previous prime is 65390461. The next prime is 65390497. The reversal of 65390485 is 58409356.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19989841 + 45400644 = 4471^2 + 6738^2 .

It is a cyclic number.

It is not a de Polignac number, because 65390485 - 2⁵ = 65390453 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6539044 + ... + 6539053.

It is an arithmetic number, because the mean of its divisors is an integer number (19617147).

Almost surely, 2^65390485 is an apocalyptic number.

It is an amenable number.

65390485 is a deficient number, since it is larger than the sum of its proper divisors (13078103).

65390485 is a wasteful number, since it uses less digits than its factorization.

65390485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13078102.

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

The square root of 65390485 is about 8086.4383383539. The cubic root of 65390485 is about 402.8761141039.

The spelling of 65390485 in words is "sixty-five million, three hundred ninety thousand, four hundred eighty-five".