50641000001 has 4 divisors (see below), whose sum is σ = 53619882372. Its totient is φ = 47662117632.

The previous prime is 50640999979. The next prime is 50641000019. The reversal of 50641000001 is 10000014605.

It is a happy number.

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 16572700225 + 34068299776 = 128735^2 + 184576^2 .

It is a cyclic number.

It is not a de Polignac number, because 50641000001 - 2³⁰ = 49567258177 is a prime.

It is a super-2 number, since 2×50641000001² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 2978882353 = 50641000001 / (5 + 0 + 6 + 4 + 1 + 0 + 0 + 0 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50641000061) 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, 1489441160 + ... + 1489441193.

It is an arithmetic number, because the mean of its divisors is an integer number (13404970593).

Almost surely, 2^50641000001 is an apocalyptic number.

It is an amenable number.

50641000001 is a deficient number, since it is larger than the sum of its proper divisors (2978882371).

50641000001 is a wasteful number, since it uses less digits than its factorization.

50641000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2978882370.

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

Adding to 50641000001 its reverse (10000014605), we get a palindrome (60641014606).

The spelling of 50641000001 in words is "fifty billion, six hundred forty-one million, one", and thus it is an aban number.