51040450051 has 8 divisors (see below), whose sum is σ = 54227506320. Its totient is φ = 47948529888.

The previous prime is 51040450003. The next prime is 51040450093. The reversal of 51040450051 is 15005404015.

It is a happy number.

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 51040450051 - 2²⁵ = 51006895619 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51040449998 and 51040450025.

It is not an unprimeable number, because it can be changed into a prime (51040450651) 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, 23782921 + ... + 23785066.

It is an arithmetic number, because the mean of its divisors is an integer number (6778438290).

Almost surely, 2^51040450051 is an apocalyptic number.

51040450051 is a deficient number, since it is larger than the sum of its proper divisors (3187056269).

51040450051 is a wasteful number, since it uses less digits than its factorization.

51040450051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47568053.

The product of its (nonzero) digits is 2000, while the sum is 25.

Adding to 51040450051 its reverse (15005404015), we get a palindrome (66045854066).

The spelling of 51040450051 in words is "fifty-one billion, forty million, four hundred fifty thousand, fifty-one".