51302957 has 4 divisors (see below), whose sum is σ = 54320796. Its totient is φ = 48285120.

The previous prime is 51302917. The next prime is 51302989. The reversal of 51302957 is 75920315.

51302957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 33570436 + 17732521 = 5794^2 + 4211^2 .

It is a cyclic number.

It is not a de Polignac number, because 51302957 - 2¹² = 51298861 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 (51302917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1508894 + ... + 1508927.

It is an arithmetic number, because the mean of its divisors is an integer number (13580199).

Almost surely, 2^51302957 is an apocalyptic number.

It is an amenable number.

51302957 is a deficient number, since it is larger than the sum of its proper divisors (3017839).

51302957 is a wasteful number, since it uses less digits than its factorization.

51302957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3017838.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 51302957 is about 7162.6082539812. The cubic root of 51302957 is about 371.5758379893.

The spelling of 51302957 in words is "fifty-one million, three hundred two thousand, nine hundred fifty-seven".