51023534234 has 4 divisors (see below), whose sum is σ = 76535301354. Its totient is φ = 25511767116.

The previous prime is 51023534231. The next prime is 51023534269. The reversal of 51023534234 is 43243532015.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 27964200625 + 23059333609 = 167225^2 + 151853^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51023534234.

It is not an unprimeable number, because it can be changed into a prime (51023534231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12755883557 + ... + 12755883560.

Almost surely, 2^51023534234 is an apocalyptic number.

51023534234 is a deficient number, since it is larger than the sum of its proper divisors (25511767120).

51023534234 is a wasteful number, since it uses less digits than its factorization.

51023534234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25511767119.

The product of its (nonzero) digits is 43200, while the sum is 32.

The spelling of 51023534234 in words is "fifty-one billion, twenty-three million, five hundred thirty-four thousand, two hundred thirty-four".