51688037 has 8 divisors (see below), whose sum is σ = 54670560. Its totient is φ = 48731760.

The previous prime is 51688033. The next prime is 51688051. The reversal of 51688037 is 73088615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51688037 - 2² = 51688033 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51688033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2438 + ... + 10455.

It is an arithmetic number, because the mean of its divisors is an integer number (6833820).

Almost surely, 2^51688037 is an apocalyptic number.

It is an amenable number.

51688037 is a deficient number, since it is larger than the sum of its proper divisors (2982523).

51688037 is a wasteful number, since it uses less digits than its factorization.

51688037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13123.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 51688037 is about 7189.4392688164. The cubic root of 51688037 is about 372.5032043326.

The spelling of 51688037 in words is "fifty-one million, six hundred eighty-eight thousand, thirty-seven".