51363841 has 4 divisors (see below), whose sum is σ = 51418692. Its totient is φ = 51308992.

The previous prime is 51363797. The next prime is 51363877. The reversal of 51363841 is 14836315.

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 30019441 + 21344400 = 5479^2 + 4620^2 .

It is a cyclic number.

It is not a de Polignac number, because 51363841 - 2⁹ = 51363329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51363041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25996 + ... + 27901.

It is an arithmetic number, because the mean of its divisors is an integer number (12854673).

It is a Proth number, since it is equal to 3135 ⋅ 2¹⁴ + 1 and 3135 < 2¹⁴.

Almost surely, 2^51363841 is an apocalyptic number.

It is an amenable number.

51363841 is a deficient number, since it is larger than the sum of its proper divisors (54851).

51363841 is an equidigital number, since it uses as much as digits as its factorization.

51363841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54850.

The product of its digits is 8640, while the sum is 31.

The square root of 51363841 is about 7166.8571215003. The cubic root of 51363841 is about 371.7227696103.

The spelling of 51363841 in words is "fifty-one million, three hundred sixty-three thousand, eight hundred forty-one".