51206411001 has 8 divisors (see below), whose sum is σ = 68280703840. Its totient is φ = 34134862752.

The previous prime is 51206410999. The next prime is 51206411017. The reversal of 51206411001 is 10011460215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51206411001 - 2¹ = 51206410999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51206411071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 642211 + ... + 717528.

It is an arithmetic number, because the mean of its divisors is an integer number (8535087980).

Almost surely, 2^51206411001 is an apocalyptic number.

It is an amenable number.

51206411001 is a deficient number, since it is larger than the sum of its proper divisors (17074292839).

51206411001 is a wasteful number, since it uses less digits than its factorization.

51206411001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372295.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 51206411001 its reverse (10011460215), we get a palindrome (61217871216).

The spelling of 51206411001 in words is "fifty-one billion, two hundred six million, four hundred eleven thousand, one".