51006117541 has 8 divisors (see below), whose sum is σ = 51126344640. Its totient is φ = 50886019488.

The previous prime is 51006117469. The next prime is 51006117559. The reversal of 51006117541 is 14571160015.

51006117541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 51006117541 - 2¹¹ = 51006115493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51006117341) 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, 783265 + ... + 845881.

It is an arithmetic number, because the mean of its divisors is an integer number (6390793080).

Almost surely, 2^51006117541 is an apocalyptic number.

It is an amenable number.

51006117541 is a deficient number, since it is larger than the sum of its proper divisors (120227099).

51006117541 is a wasteful number, since it uses less digits than its factorization.

51006117541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64523.

The product of its (nonzero) digits is 4200, while the sum is 31.

Adding to 51006117541 its reverse (14571160015), we get a palindrome (65577277556).

The spelling of 51006117541 in words is "fifty-one billion, six million, one hundred seventeen thousand, five hundred forty-one".