51443045240 has 32 divisors (see below), whose sum is σ = 115756938000. Its totient is φ = 20575425024.

The previous prime is 51443045237. The next prime is 51443045249. The reversal of 51443045240 is 4254034415.

It is a junction number, because it is equal to n+sod(n) for n = 51443045197 and 51443045206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51443045249) 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, 469616 + ... + 568704.

Almost surely, 2^51443045240 is an apocalyptic number.

It is an amenable number.

51443045240 is an abundant number, since it is smaller than the sum of its proper divisors (64313892760).

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

51443045240 is a wasteful number, since it uses less digits than its factorization.

51443045240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112079 (or 112075 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 51443045240 its reverse (4254034415), we get a palindrome (55697079655).

The spelling of 51443045240 in words is "fifty-one billion, four hundred forty-three million, forty-five thousand, two hundred forty".