43144355550 has 24 divisors (see below), whose sum is σ = 106998002136. Its totient is φ = 11505161440.

The previous prime is 43144355521. The next prime is 43144355603. The reversal of 43144355550 is 5555344134.

It is a happy number.

It is a super-2 number, since 2×43144355550² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43144355499 and 43144355508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143814369 + ... + 143814668.

It is an arithmetic number, because the mean of its divisors is an integer number (4458250089).

Almost surely, 2^43144355550 is an apocalyptic number.

43144355550 is an abundant number, since it is smaller than the sum of its proper divisors (63853646586).

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

43144355550 is a wasteful number, since it uses less digits than its factorization.

43144355550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287629052 (or 287629047 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 39.

Adding to 43144355550 its reverse (5555344134), we get a palindrome (48699699684).

The spelling of 43144355550 in words is "forty-three billion, one hundred forty-four million, three hundred fifty-five thousand, five hundred fifty".