1550404440441 has 24 divisors (see below), whose sum is σ = 2343723141760. Its totient is φ = 1024120346832.

The previous prime is 1550404440439. The next prime is 1550404440443. The reversal of 1550404440441 is 1440444040551.

It is an interprime number because it is at equal distance from previous prime (1550404440439) and next prime (1550404440443).

It is not a de Polignac number, because 1550404440441 - 2¹ = 1550404440439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1550404440396 and 1550404440405.

It is not an unprimeable number, because it can be changed into a prime (1550404440443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29240785 + ... + 29293758.

Almost surely, 2^{1550404440441} is an apocalyptic number.

It is an amenable number.

1550404440441 is a deficient number, since it is larger than the sum of its proper divisors (793318701319).

1550404440441 is an equidigital number, since it uses as much as digits as its factorization.

1550404440441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58534667 (or 58534655 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 36.

Adding to 1550404440441 its reverse (1440444040551), we get a palindrome (2990848480992).

The spelling of 1550404440441 in words is "one trillion, five hundred fifty billion, four hundred four million, four hundred forty thousand, four hundred forty-one".