5550001555450 has 72 divisors (see below), whose sum is σ = 11459117311740. Its totient is φ = 1998200160000.

The previous prime is 5550001555447. The next prime is 5550001555453. The reversal of 5550001555450 is 545551000555.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (5550001555447) and next prime (5550001555453).

It can be written as a sum of positive squares in 6 ways, for example, as 1971544549689 + 3578457005761 = 1404117^2 + 1891681^2 .

It is not an unprimeable number, because it can be changed into a prime (5550001555453) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3930315 + ... + 5152414.

Almost surely, 2^{5550001555450} is an apocalyptic number.

5550001555450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5550001555450 is an abundant number, since it is smaller than the sum of its proper divisors (5909115756290).

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

5550001555450 is a wasteful number, since it uses less digits than its factorization.

5550001555450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9082864 (or 9082848 counting only the distinct ones).

The product of its (nonzero) digits is 312500, while the sum is 40.

The spelling of 5550001555450 in words is "five trillion, five hundred fifty billion, one million, five hundred fifty-five thousand, four hundred fifty".