1550225251984 has 80 divisors (see below), whose sum is σ = 3189013836480. Its totient is φ = 727982899200.

The previous prime is 1550225251891. The next prime is 1550225251997. The reversal of 1550225251984 is 4891525220551.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19831344 + ... + 19909360.

It is an arithmetic number, because the mean of its divisors is an integer number (39862672956).

Almost surely, 2^{1550225251984} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1550225251984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1594506918240).

1550225251984 is an abundant number, since it is smaller than the sum of its proper divisors (1638788584496).

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

1550225251984 is a wasteful number, since it uses less digits than its factorization.

1550225251984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78608 (or 78602 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 49.

The spelling of 1550225251984 in words is "one trillion, five hundred fifty billion, two hundred twenty-five million, two hundred fifty-one thousand, nine hundred eighty-four".