51172037 has 8 divisors (see below), whose sum is σ = 60499200. Its totient is φ = 42349104.

The previous prime is 51172019. The next prime is 51172061. The reversal of 51172037 is 73027115.

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

It is not a de Polignac number, because 51172037 - 2¹⁶ = 51106501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51171997 and 51172015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51172007) 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, 125837 + ... + 126242.

It is an arithmetic number, because the mean of its divisors is an integer number (7562400).

Almost surely, 2^51172037 is an apocalyptic number.

It is an amenable number.

51172037 is a deficient number, since it is larger than the sum of its proper divisors (9327163).

51172037 is a wasteful number, since it uses less digits than its factorization.

51172037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252115.

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 51172037 is about 7153.4632871079. The cubic root of 51172037 is about 371.2594939887.

The spelling of 51172037 in words is "fifty-one million, one hundred seventy-two thousand, thirty-seven".