65290012 has 12 divisors (see below), whose sum is σ = 115025400. Its totient is φ = 32425616.

The previous prime is 65289989. The next prime is 65290037. The reversal of 65290012 is 21009256.

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, 54178 + ... + 55369.

It is an arithmetic number, because the mean of its divisors is an integer number (9585450).

Almost surely, 2^65290012 is an apocalyptic number.

It is an amenable number.

65290012 is a deficient number, since it is larger than the sum of its proper divisors (49735388).

65290012 is a wasteful number, since it uses less digits than its factorization.

65290012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109700 (or 109698 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 65290012 is about 8080.2235117601. The cubic root of 65290012 is about 402.6696675483.

Adding to 65290012 its reverse (21009256), we get a palindrome (86299268).

The spelling of 65290012 in words is "sixty-five million, two hundred ninety thousand, twelve".