51214065 has 48 divisors (see below), whose sum is σ = 97018560. Its totient is φ = 22995840.

The previous prime is 51214061. The next prime is 51214069. The reversal of 51214065 is 56041215.

It is an interprime number because it is at equal distance from previous prime (51214061) and next prime (51214069).

It is not a de Polignac number, because 51214065 - 2² = 51214061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51214061) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42775 + ... + 43955.

It is an arithmetic number, because the mean of its divisors is an integer number (2021220).

Almost surely, 2^51214065 is an apocalyptic number.

It is an amenable number.

51214065 is a deficient number, since it is larger than the sum of its proper divisors (45804495).

51214065 is a wasteful number, since it uses less digits than its factorization.

51214065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262 (or 1255 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 51214065 is about 7156.4002822648. The cubic root of 51214065 is about 371.3611056317.

The spelling of 51214065 in words is "fifty-one million, two hundred fourteen thousand, sixty-five".