51647141 has 16 divisors (see below), whose sum is σ = 63772800. Its totient is φ = 40730688.

The previous prime is 51647131. The next prime is 51647159. The reversal of 51647141 is 14174615.

It is a cyclic number.

It is not a de Polignac number, because 51647141 - 2¹⁴ = 51630757 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51647131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34670 + ... + 36128.

It is an arithmetic number, because the mean of its divisors is an integer number (3985800).

Almost surely, 2^51647141 is an apocalyptic number.

It is an amenable number.

51647141 is a deficient number, since it is larger than the sum of its proper divisors (12125659).

51647141 is a wasteful number, since it uses less digits than its factorization.

51647141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868.

The product of its digits is 3360, while the sum is 29.

The square root of 51647141 is about 7186.5945342700. The cubic root of 51647141 is about 372.4049358781.

The spelling of 51647141 in words is "fifty-one million, six hundred forty-seven thousand, one hundred forty-one".