51344365 has 16 divisors (see below), whose sum is σ = 66369600. Its totient is φ = 38005632.

The previous prime is 51344347. The next prime is 51344383. The reversal of 51344365 is 56344315.

It is an interprime number because it is at equal distance from previous prime (51344347) and next prime (51344383).

It is a cyclic number.

It is not a de Polignac number, because 51344365 - 2²¹ = 49247213 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2200 + ... + 10369.

It is an arithmetic number, because the mean of its divisors is an integer number (4148100).

Almost surely, 2^51344365 is an apocalyptic number.

It is an amenable number.

51344365 is a deficient number, since it is larger than the sum of its proper divisors (15025235).

51344365 is a wasteful number, since it uses less digits than its factorization.

51344365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12636.

The product of its digits is 21600, while the sum is 31.

The square root of 51344365 is about 7165.4982380851. The cubic root of 51344365 is about 371.6757807315.

The spelling of 51344365 in words is "fifty-one million, three hundred forty-four thousand, three hundred sixty-five".