51153143 has 4 divisors (see below), whose sum is σ = 51173400. Its totient is φ = 51132888.

The previous prime is 51153107. The next prime is 51153161. The reversal of 51153143 is 34135115.

51153143 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 51153143 - 2⁸ = 51152887 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 (51153103) 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, 5693 + ... + 11606.

It is an arithmetic number, because the mean of its divisors is an integer number (12793350).

Almost surely, 2^51153143 is an apocalyptic number.

51153143 is a deficient number, since it is larger than the sum of its proper divisors (20257).

51153143 is a wasteful number, since it uses less digits than its factorization.

51153143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20256.

The product of its digits is 900, while the sum is 23.

The square root of 51153143 is about 7152.1425461186. The cubic root of 51153143 is about 371.2137955905.

Adding to 51153143 its reverse (34135115), we get a palindrome (85288258).

The spelling of 51153143 in words is "fifty-one million, one hundred fifty-three thousand, one hundred forty-three".