51028337 has 4 divisors (see below), whose sum is σ = 51174900. Its totient is φ = 50881776.

The previous prime is 51028309. The next prime is 51028361. The reversal of 51028337 is 73382015.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46117681 + 4910656 = 6791^2 + 2216^2 .

It is a cyclic number.

It is not a de Polignac number, because 51028337 - 2⁶ = 51028273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51028837) 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 3 ways as a sum of consecutive naturals, for example, 72758 + ... + 73455.

It is an arithmetic number, because the mean of its divisors is an integer number (12793725).

Almost surely, 2^51028337 is an apocalyptic number.

It is an amenable number.

51028337 is a deficient number, since it is larger than the sum of its proper divisors (146563).

51028337 is a wasteful number, since it uses less digits than its factorization.

51028337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146562.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 51028337 is about 7143.4121398671. The cubic root of 51028337 is about 370.9116477224.

The spelling of 51028337 in words is "fifty-one million, twenty-eight thousand, three hundred thirty-seven".