1550455525201 has 16 divisors (see below), whose sum is σ = 1786763505600. Its totient is φ = 1330568467200.

The previous prime is 1550455525141. The next prime is 1550455525243. The reversal of 1550455525201 is 1025255540551.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1550455525201 - 2²⁹ = 1549918654289 is a prime.

It is a super-3 number, since 3×1550455525201³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1550455525601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13141356 + ... + 13258813.

It is an arithmetic number, because the mean of its divisors is an integer number (111672719100).

Almost surely, 2^{1550455525201} is an apocalyptic number.

1550455525201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1550455525201 is a deficient number, since it is larger than the sum of its proper divisors (236307980399).

1550455525201 is a wasteful number, since it uses less digits than its factorization.

1550455525201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26400480.

The product of its (nonzero) digits is 250000, while the sum is 40.

The spelling of 1550455525201 in words is "one trillion, five hundred fifty billion, four hundred fifty-five million, five hundred twenty-five thousand, two hundred one".