51696037 has 4 divisors (see below), whose sum is σ = 51864736. Its totient is φ = 51527340.

The previous prime is 51695989. The next prime is 51696049. The reversal of 51696037 is 73069615.

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 a de Polignac number, because none of the positive numbers 2^k-51696037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51695987 and 51696005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51696077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83889 + ... + 84502.

It is an arithmetic number, because the mean of its divisors is an integer number (12966184).

Almost surely, 2^51696037 is an apocalyptic number.

It is an amenable number.

51696037 is a deficient number, since it is larger than the sum of its proper divisors (168699).

51696037 is a wasteful number, since it uses less digits than its factorization.

51696037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168698.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 51696037 is about 7189.9956189138. The cubic root of 51696037 is about 372.5224213641.

The spelling of 51696037 in words is "fifty-one million, six hundred ninety-six thousand, thirty-seven".