51601241 has 4 divisors (see below), whose sum is σ = 51714612. Its totient is φ = 51487872.

The previous prime is 51601219. The next prime is 51601271. The reversal of 51601241 is 14210615.

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 43507216 + 8094025 = 6596^2 + 2845^2 .

It is a cyclic number.

It is not a de Polignac number, because 51601241 - 2¹⁴ = 51584857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51601211) 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, 56000 + ... + 56913.

It is an arithmetic number, because the mean of its divisors is an integer number (12928653).

Almost surely, 2^51601241 is an apocalyptic number.

It is an amenable number.

51601241 is a deficient number, since it is larger than the sum of its proper divisors (113371).

51601241 is a wasteful number, since it uses less digits than its factorization.

51601241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113370.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 51601241 is about 7183.4003786508. The cubic root of 51601241 is about 372.2945815746.

Adding to 51601241 its reverse (14210615), we get a palindrome (65811856).

The spelling of 51601241 in words is "fifty-one million, six hundred one thousand, two hundred forty-one".