51743371 has 4 divisors (see below), whose sum is σ = 53412544. Its totient is φ = 50074200.

The previous prime is 51743369. The next prime is 51743387. The reversal of 51743371 is 17334715.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17334715 = 5 ⋅3466943.

It is a cyclic number.

It is not a de Polignac number, because 51743371 - 2¹ = 51743369 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 1669141 = 51743371 / (5 + 1 + 7 + 4 + 3 + 3 + 7 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51743171) 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, 834540 + ... + 834601.

It is an arithmetic number, because the mean of its divisors is an integer number (13353136).

Almost surely, 2^51743371 is an apocalyptic number.

51743371 is a deficient number, since it is larger than the sum of its proper divisors (1669173).

51743371 is a wasteful number, since it uses less digits than its factorization.

51743371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669172.

The product of its digits is 8820, while the sum is 31.

The square root of 51743371 is about 7193.2865228628. The cubic root of 51743371 is about 372.6360831864.

The spelling of 51743371 in words is "fifty-one million, seven hundred forty-three thousand, three hundred seventy-one".