51745571 has 2 divisors, whose sum is σ = 51745572. Its totient is φ = 51745570.

The previous prime is 51745559. The next prime is 51745583. The reversal of 51745571 is 17554715.

It is a balanced prime because it is at equal distance from previous prime (51745559) and next prime (51745583).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51745571 is a prime.

It is not a weakly prime, because it can be changed into another prime (51745591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25872785 + 25872786.

It is an arithmetic number, because the mean of its divisors is an integer number (25872786).

Almost surely, 2^51745571 is an apocalyptic number.

51745571 is a deficient number, since it is larger than the sum of its proper divisors (1).

51745571 is an equidigital number, since it uses as much as digits as its factorization.

51745571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24500, while the sum is 35.

The square root of 51745571 is about 7193.4394416023. The cubic root of 51745571 is about 372.6413642994.

The spelling of 51745571 in words is "fifty-one million, seven hundred forty-five thousand, five hundred seventy-one".