51143534 has 16 divisors (see below), whose sum is σ = 82736640. Its totient is φ = 23570400.

The previous prime is 51143503. The next prime is 51143551. The reversal of 51143534 is 43534115.

51143534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51143534² = 5231322140018312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 29072 + ... + 30780.

It is an arithmetic number, because the mean of its divisors is an integer number (5171040).

Almost surely, 2^51143534 is an apocalyptic number.

51143534 is a deficient number, since it is larger than the sum of its proper divisors (31593106).

51143534 is a wasteful number, since it uses less digits than its factorization.

51143534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2875.

The product of its digits is 3600, while the sum is 26.

The square root of 51143534 is about 7151.4707578232. The cubic root of 51143534 is about 371.1905502496.

Adding to 51143534 its reverse (43534115), we get a palindrome (94677649).

The spelling of 51143534 in words is "fifty-one million, one hundred forty-three thousand, five hundred thirty-four".