51536834 has 4 divisors (see below), whose sum is σ = 77305254. Its totient is φ = 25768416.

The previous prime is 51536831. The next prime is 51536897. The reversal of 51536834 is 43863515.

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., 51051025 + 485809 = 7145^2 + 697^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51536794 and 51536803.

It is not an unprimeable number, because it can be changed into a prime (51536831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12884207 + ... + 12884210.

Almost surely, 2^51536834 is an apocalyptic number.

51536834 is a deficient number, since it is larger than the sum of its proper divisors (25768420).

51536834 is a wasteful number, since it uses less digits than its factorization.

51536834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25768419.

The product of its digits is 43200, while the sum is 35.

The square root of 51536834 is about 7178.9159348748. The cubic root of 51536834 is about 372.1396217331.

The spelling of 51536834 in words is "fifty-one million, five hundred thirty-six thousand, eight hundred thirty-four".