51253711 has 4 divisors (see below), whose sum is σ = 51466624. Its totient is φ = 51040800.

The previous prime is 51253679. The next prime is 51253723. The reversal of 51253711 is 11735215.

51253711 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11735215 = 5 ⋅2347043.

It is a cyclic number.

It is not a de Polignac number, because 51253711 - 2⁵ = 51253679 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 (51253751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106095 + ... + 106576.

It is an arithmetic number, because the mean of its divisors is an integer number (12866656).

Almost surely, 2^51253711 is an apocalyptic number.

51253711 is a deficient number, since it is larger than the sum of its proper divisors (212913).

51253711 is a wasteful number, since it uses less digits than its factorization.

51253711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212912.

The product of its digits is 1050, while the sum is 25.

The square root of 51253711 is about 7159.1697144292. The cubic root of 51253711 is about 371.4569073409.

Adding to 51253711 its reverse (11735215), we get a palindrome (62988926).

It can be divided in two parts, 5125 and 3711, that added together give a square (8836 = 94²).

The spelling of 51253711 in words is "fifty-one million, two hundred fifty-three thousand, seven hundred eleven".