51541161241 has 4 divisors (see below), whose sum is σ = 51542687872. Its totient is φ = 51539634612.

The previous prime is 51541161229. The next prime is 51541161247. The reversal of 51541161241 is 14216114515.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51541161241 - 2⁹ = 51541160729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51541161247) 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, 711501 + ... + 780586.

It is an arithmetic number, because the mean of its divisors is an integer number (12885671968).

Almost surely, 2^51541161241 is an apocalyptic number.

It is an amenable number.

51541161241 is a deficient number, since it is larger than the sum of its proper divisors (1526631).

51541161241 is a wasteful number, since it uses less digits than its factorization.

51541161241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526630.

The product of its digits is 4800, while the sum is 31.

Adding to 51541161241 its reverse (14216114515), we get a palindrome (65757275756).

The spelling of 51541161241 in words is "fifty-one billion, five hundred forty-one million, one hundred sixty-one thousand, two hundred forty-one".