51301241 has 4 divisors (see below), whose sum is σ = 51521652. Its totient is φ = 51080832.

The previous prime is 51301219. The next prime is 51301309. The reversal of 51301241 is 14210315.

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 15241216 + 36060025 = 3904^2 + 6005^2 .

It is a cyclic number.

It is not a de Polignac number, because 51301241 - 2²² = 47106937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51301141) 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, 109856 + ... + 110321.

It is an arithmetic number, because the mean of its divisors is an integer number (12880413).

Almost surely, 2^51301241 is an apocalyptic number.

It is an amenable number.

51301241 is a deficient number, since it is larger than the sum of its proper divisors (220411).

51301241 is a wasteful number, since it uses less digits than its factorization.

51301241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220410.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 51301241 is about 7162.4884642141. The cubic root of 51301241 is about 371.5716950751.

Adding to 51301241 its reverse (14210315), we get a palindrome (65511556).

The spelling of 51301241 in words is "fifty-one million, three hundred one thousand, two hundred forty-one".