1550421241005 has 128 divisors (see below), whose sum is σ = 3083595153408. Its totient is φ = 647742523392.

The previous prime is 1550421240997. The next prime is 1550421241027. The reversal of 1550421241005 is 5001421240551.

It is not a de Polignac number, because 1550421241005 - 2³ = 1550421240997 is a prime.

It is a congruent number.

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 71612092 + ... + 71633738.

It is an arithmetic number, because the mean of its divisors is an integer number (24090587136).

Almost surely, 2^{1550421241005} is an apocalyptic number.

1550421241005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1550421241005 is a deficient number, since it is larger than the sum of its proper divisors (1533173912403).

1550421241005 is a wasteful number, since it uses less digits than its factorization.

1550421241005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22195.

The product of its (nonzero) digits is 8000, while the sum is 30.

Adding to 1550421241005 its reverse (5001421240551), we get a palindrome (6551842481556).

The spelling of 1550421241005 in words is "one trillion, five hundred fifty billion, four hundred twenty-one million, two hundred forty-one thousand, five".