51421241001 has 16 divisors (see below), whose sum is σ = 74875570560. Its totient is φ = 31198151040.

The previous prime is 51421240939. The next prime is 51421241009. The reversal of 51421241001 is 10014212415.

It is not a de Polignac number, because 51421241001 - 2¹⁰ = 51421239977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51421241009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9282396 + ... + 9287933.

It is an arithmetic number, because the mean of its divisors is an integer number (4679723160).

Almost surely, 2^51421241001 is an apocalyptic number.

It is an amenable number.

51421241001 is a deficient number, since it is larger than the sum of its proper divisors (23454329559).

51421241001 is a wasteful number, since it uses less digits than its factorization.

51421241001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18570416.

The product of its (nonzero) digits is 320, while the sum is 21.

Adding to 51421241001 its reverse (10014212415), we get a palindrome (61435453416).

The spelling of 51421241001 in words is "fifty-one billion, four hundred twenty-one million, two hundred forty-one thousand, one".