51145711 has 2 divisors, whose sum is σ = 51145712. Its totient is φ = 51145710.

The previous prime is 51145709. The next prime is 51145751. The reversal of 51145711 is 11754115.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51145711 - 2¹ = 51145709 is a prime.

Together with 51145709, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51145751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25572855 + 25572856.

It is an arithmetic number, because the mean of its divisors is an integer number (25572856).

Almost surely, 2^51145711 is an apocalyptic number.

51145711 is a deficient number, since it is larger than the sum of its proper divisors (1).

51145711 is an equidigital number, since it uses as much as digits as its factorization.

51145711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 700, while the sum is 25.

The square root of 51145711 is about 7151.6229626568. The cubic root of 51145711 is about 371.1958169327.

Adding to 51145711 its reverse (11754115), we get a palindrome (62899826).

The spelling of 51145711 in words is "fifty-one million, one hundred forty-five thousand, seven hundred eleven".