2538145553 has 16 divisors (see below), whose sum is σ = 2654260224. Its totient is φ = 2424314880.

The previous prime is 2538145529. The next prime is 2538145601. The reversal of 2538145553 is 3555418352.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2538145553 - 2¹² = 2538141457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2538145553.

It is not an unprimeable number, because it can be changed into a prime (2538945553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1373276 + ... + 1375122.

It is an arithmetic number, because the mean of its divisors is an integer number (165891264).

Almost surely, 2^2538145553 is an apocalyptic number.

It is an amenable number.

2538145553 is a deficient number, since it is larger than the sum of its proper divisors (116114671).

2538145553 is a wasteful number, since it uses less digits than its factorization.

2538145553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2432.

The product of its digits is 360000, while the sum is 41.

The square root of 2538145553 is about 50380.0114430317. The cubic root of 2538145553 is about 1364.0768585057.

The spelling of 2538145553 in words is "two billion, five hundred thirty-eight million, one hundred forty-five thousand, five hundred fifty-three".