51280711 has 2 divisors, whose sum is σ = 51280712. Its totient is φ = 51280710.

The previous prime is 51280693. The next prime is 51280741. The reversal of 51280711 is 11708215.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51280711 - 2¹³ = 51272519 is a prime.

It is a super-2 number, since 2×51280711² = 5259422641331042, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51280741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25640355 + 25640356.

It is an arithmetic number, because the mean of its divisors is an integer number (25640356).

Almost surely, 2^51280711 is an apocalyptic number.

51280711 is a deficient number, since it is larger than the sum of its proper divisors (1).

51280711 is an equidigital number, since it uses as much as digits as its factorization.

51280711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 25.

The square root of 51280711 is about 7161.0551596814. The cubic root of 51280711 is about 371.5221226245.

Adding to 51280711 its reverse (11708215), we get a palindrome (62988926).

The spelling of 51280711 in words is "fifty-one million, two hundred eighty thousand, seven hundred eleven".