51875543 has 2 divisors, whose sum is σ = 51875544. Its totient is φ = 51875542.

The previous prime is 51875533. The next prime is 51875569. The reversal of 51875543 is 34557815.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51875543 - 2¹⁸ = 51613399 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51875497 and 51875506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51875533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25937771 + 25937772.

It is an arithmetic number, because the mean of its divisors is an integer number (25937772).

Almost surely, 2^51875543 is an apocalyptic number.

51875543 is a deficient number, since it is larger than the sum of its proper divisors (1).

51875543 is an equidigital number, since it uses as much as digits as its factorization.

51875543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84000, while the sum is 38.

The square root of 51875543 is about 7202.4678409556. The cubic root of 51875543 is about 372.9530975773.

The spelling of 51875543 in words is "fifty-one million, eight hundred seventy-five thousand, five hundred forty-three".