65922985 has 4 divisors (see below), whose sum is σ = 79107588. Its totient is φ = 52738384.

The previous prime is 65922979. The next prime is 65923007. The reversal of 65922985 is 58922956.

It is a happy number.

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 37161216 + 28761769 = 6096^2 + 5363^2 .

It is a cyclic number.

It is not a de Polignac number, because 65922985 - 2³ = 65922977 is a prime.

It is a Duffinian 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, 6592294 + ... + 6592303.

It is an arithmetic number, because the mean of its divisors is an integer number (19776897).

Almost surely, 2^65922985 is an apocalyptic number.

It is an amenable number.

65922985 is a deficient number, since it is larger than the sum of its proper divisors (13184603).

65922985 is a wasteful number, since it uses less digits than its factorization.

65922985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13184602.

The product of its digits is 388800, while the sum is 46.

The square root of 65922985 is about 8119.2970754863. The cubic root of 65922985 is about 403.9667509316.

The spelling of 65922985 in words is "sixty-five million, nine hundred twenty-two thousand, nine hundred eighty-five".