51495711 has 4 divisors (see below), whose sum is σ = 68660952. Its totient is φ = 34330472.

The previous prime is 51495709. The next prime is 51495721. The reversal of 51495711 is 11759415.

51495711 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.

It is a cyclic number.

It is not a de Polignac number, because 51495711 - 2¹ = 51495709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51495721) 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, 8582616 + ... + 8582621.

It is an arithmetic number, because the mean of its divisors is an integer number (17165238).

Almost surely, 2^51495711 is an apocalyptic number.

51495711 is a deficient number, since it is larger than the sum of its proper divisors (17165241).

51495711 is a wasteful number, since it uses less digits than its factorization.

51495711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17165240.

The product of its digits is 6300, while the sum is 33.

The square root of 51495711 is about 7176.0512121918. The cubic root of 51495711 is about 372.0406144233.

The spelling of 51495711 in words is "fifty-one million, four hundred ninety-five thousand, seven hundred eleven".