51441169 has 4 divisors (see below), whose sum is σ = 55398196. Its totient is φ = 47484144.

The previous prime is 51441163. The next prime is 51441191. The reversal of 51441169 is 96114415.

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 12852225 + 38588944 = 3585^2 + 6212^2 .

It is a cyclic number.

It is not a de Polignac number, because 51441169 - 2¹⁹ = 50916881 is a prime.

It is a super-2 number, since 2×51441169² = 5292387736173122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51441169.

It is not an unprimeable number, because it can be changed into a prime (51441163) 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, 1978494 + ... + 1978519.

It is an arithmetic number, because the mean of its divisors is an integer number (13849549).

Almost surely, 2^51441169 is an apocalyptic number.

It is an amenable number.

51441169 is a deficient number, since it is larger than the sum of its proper divisors (3957027).

51441169 is a wasteful number, since it uses less digits than its factorization.

51441169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3957026.

The product of its digits is 4320, while the sum is 31.

The square root of 51441169 is about 7172.2499259298. The cubic root of 51441169 is about 371.9092183187.

The spelling of 51441169 in words is "fifty-one million, four hundred forty-one thousand, one hundred sixty-nine".