1555305002401 has 12 divisors (see below), whose sum is σ = 1668215778112. Its totient is φ = 1449604634688.

The previous prime is 1555305002353. The next prime is 1555305002413. The reversal of 1555305002401 is 1042005035551.

It is not a de Polignac number, because 1555305002401 - 2³⁹ = 1005549188513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1555305002431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26094885 + ... + 26154418.

Almost surely, 2^{1555305002401} is an apocalyptic number.

It is an amenable number.

1555305002401 is a deficient number, since it is larger than the sum of its proper divisors (112910775711).

1555305002401 is a wasteful number, since it uses less digits than its factorization.

1555305002401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52249440 (or 52249423 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

The spelling of 1555305002401 in words is "one trillion, five hundred fifty-five billion, three hundred five million, two thousand, four hundred one".