65212055 has 8 divisors (see below), whose sum is σ = 78299232. Its totient is φ = 52139808.

The previous prime is 65212031. The next prime is 65212067. The reversal of 65212055 is 55021256.

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

It is a cyclic number.

It is not a de Polignac number, because 65212055 - 2¹⁶ = 65146519 is a prime.

It is a super-2 number, since 2×65212055² = 8505224234646050, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 11654 + ... + 16316.

It is an arithmetic number, because the mean of its divisors is an integer number (9787404).

Almost surely, 2^65212055 is an apocalyptic number.

65212055 is a deficient number, since it is larger than the sum of its proper divisors (13087177).

65212055 is a wasteful number, since it uses less digits than its factorization.

65212055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7465.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 65212055 is about 8075.3981326000. The cubic root of 65212055 is about 402.5093397007.

The spelling of 65212055 in words is "sixty-five million, two hundred twelve thousand, fifty-five".