51936137 has 4 divisors (see below), whose sum is σ = 56657616. Its totient is φ = 47214660.

The previous prime is 51936127. The next prime is 51936149. The reversal of 51936137 is 73163915.

51936137 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51936137 - 2⁴ = 51936121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51936097 and 51936106.

It is not an unprimeable number, because it can be changed into a prime (51936127) 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, 2360723 + ... + 2360744.

It is an arithmetic number, because the mean of its divisors is an integer number (14164404).

Almost surely, 2^51936137 is an apocalyptic number.

It is an amenable number.

51936137 is a deficient number, since it is larger than the sum of its proper divisors (4721479).

51936137 is a wasteful number, since it uses less digits than its factorization.

51936137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4721478.

The product of its digits is 17010, while the sum is 35.

The square root of 51936137 is about 7206.6730881871. The cubic root of 51936137 is about 373.0982522139.

The spelling of 51936137 in words is "fifty-one million, nine hundred thirty-six thousand, one hundred thirty-seven".