51305272153 has 8 divisors (see below), whose sum is σ = 51536897672. Its totient is φ = 51073981056.

The previous prime is 51305272129. The next prime is 51305272163. The reversal of 51305272153 is 35127250315.

It can be written as a sum of positive squares in 4 ways, for example, as 1915987984 + 49389284169 = 43772^2 + 222237^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51305272153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51305272163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226501 + ... + 392317.

It is an arithmetic number, because the mean of its divisors is an integer number (6442112209).

Almost surely, 2^51305272153 is an apocalyptic number.

It is an amenable number.

51305272153 is a deficient number, since it is larger than the sum of its proper divisors (231625519).

51305272153 is a wasteful number, since it uses less digits than its factorization.

51305272153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167211.

The product of its (nonzero) digits is 31500, while the sum is 34.

The spelling of 51305272153 in words is "fifty-one billion, three hundred five million, two hundred seventy-two thousand, one hundred fifty-three".