51120037 has 8 divisors (see below), whose sum is σ = 55149336. Its totient is φ = 47204352.

The previous prime is 51120029. The next prime is 51120049. The reversal of 51120037 is 73002115.

It can be written as a sum of positive squares in 4 ways, for example, as 21242881 + 29877156 = 4609^2 + 5466^2 .

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 51120037 - 2³ = 51120029 is a prime.

It is a super-2 number, since 2×51120037² = 5226516365762738, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51119996 and 51120023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51120437) 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 in 7 ways as a sum of consecutive naturals, for example, 27468 + ... + 29269.

It is an arithmetic number, because the mean of its divisors is an integer number (6893667).

Almost surely, 2^51120037 is an apocalyptic number.

It is an amenable number.

51120037 is a deficient number, since it is larger than the sum of its proper divisors (4029299).

51120037 is a wasteful number, since it uses less digits than its factorization.

51120037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56807.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 51120037 is about 7149.8277601632. The cubic root of 51120037 is about 371.1336958784.

The spelling of 51120037 in words is "fifty-one million, one hundred twenty thousand, thirty-seven".