51003251104 has 48 divisors (see below), whose sum is σ = 108825608808. Its totient is φ = 23389996032.

The previous prime is 51003251087. The next prime is 51003251107. The reversal of 51003251104 is 40115230015.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 26588563600 + 24414687504 = 163060^2 + 156252^2 .

It is not an unprimeable number, because it can be changed into a prime (51003251107) 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, 325147 + ... + 455770.

Almost surely, 2^51003251104 is an apocalyptic number.

It is an amenable number.

51003251104 is an abundant number, since it is smaller than the sum of its proper divisors (57822357704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51003251104 is a wasteful number, since it uses less digits than its factorization.

51003251104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781097 (or 781089 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 51003251104 its reverse (40115230015), we get a palindrome (91118481119).

The spelling of 51003251104 in words is "fifty-one billion, three million, two hundred fifty-one thousand, one hundred four".