1550421240315 has 8 divisors (see below), whose sum is σ = 2480673984528. Its totient is φ = 826891328160.

The previous prime is 1550421240311. The next prime is 1550421240343. The reversal of 1550421240315 is 5130421240551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1550421240315 - 2² = 1550421240311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1550421240311) 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, 51680707996 + ... + 51680708025.

It is an arithmetic number, because the mean of its divisors is an integer number (310084248066).

Almost surely, 2^{1550421240315} is an apocalyptic number.

1550421240315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1550421240315 is a deficient number, since it is larger than the sum of its proper divisors (930252744213).

1550421240315 is a wasteful number, since it uses less digits than its factorization.

1550421240315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103361416029.

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 1550421240315 its reverse (5130421240551), we get a palindrome (6680842480866).

The spelling of 1550421240315 in words is "one trillion, five hundred fifty billion, four hundred twenty-one million, two hundred forty thousand, three hundred fifteen".