1553440514550 has 48 divisors (see below), whose sum is σ = 3888537492672. Its totient is φ = 410379296800.

The previous prime is 1553440514537. The next prime is 1553440514569. The reversal of 1553440514550 is 554150443551.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48377736 + ... + 48409835.

It is an arithmetic number, because the mean of its divisors is an integer number (81011197764).

Almost surely, 2^{1553440514550} is an apocalyptic number.

1553440514550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1553440514550 is an abundant number, since it is smaller than the sum of its proper divisors (2335096978122).

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

1553440514550 is a wasteful number, since it uses less digits than its factorization.

1553440514550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96787693 (or 96787688 counting only the distinct ones).

The product of its (nonzero) digits is 600000, while the sum is 42.

The spelling of 1553440514550 in words is "one trillion, five hundred fifty-three billion, four hundred forty million, five hundred fourteen thousand, five hundred fifty".