51743361 has 4 divisors (see below), whose sum is σ = 68991152. Its totient is φ = 34495572.

The previous prime is 51743347. The next prime is 51743369. The reversal of 51743361 is 16334715.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 51743361 - 2¹⁰ = 51742337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51743369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8623891 + ... + 8623896.

It is an arithmetic number, because the mean of its divisors is an integer number (17247788).

Almost surely, 2^51743361 is an apocalyptic number.

It is an amenable number.

51743361 is a deficient number, since it is larger than the sum of its proper divisors (17247791).

51743361 is a wasteful number, since it uses less digits than its factorization.

51743361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17247790.

The product of its digits is 7560, while the sum is 30.

The square root of 51743361 is about 7193.2858277702. The cubic root of 51743361 is about 372.6360591810.

The spelling of 51743361 in words is "fifty-one million, seven hundred forty-three thousand, three hundred sixty-one".