51347543 has 16 divisors (see below), whose sum is σ = 57038016. Its totient is φ = 45930240.

The previous prime is 51347533. The next prime is 51347579. The reversal of 51347543 is 34574315.

It is a cyclic number.

It is not a de Polignac number, because 51347543 - 2⁶ = 51347479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51347533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57446 + ... + 58332.

It is an arithmetic number, because the mean of its divisors is an integer number (3564876).

Almost surely, 2^51347543 is an apocalyptic number.

51347543 is a deficient number, since it is larger than the sum of its proper divisors (5690473).

51347543 is a wasteful number, since it uses less digits than its factorization.

51347543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034.

The product of its digits is 25200, while the sum is 32.

The square root of 51347543 is about 7165.7199917384. The cubic root of 51347543 is about 371.6834489619.

The spelling of 51347543 in words is "fifty-one million, three hundred forty-seven thousand, five hundred forty-three".