2554535561553 has 24 divisors (see below), whose sum is σ = 3817486108800. Its totient is φ = 1644141950304.

The previous prime is 2554535561533. The next prime is 2554535561561. The reversal of 2554535561553 is 3551655354552.

2554535561553 is a `hidden beast` number, since 2 + 5 + 5 + 4 + 5 + 35 + 56 + 1 + 553 = 666.

It is not a de Polignac number, because 2554535561553 - 2⁸ = 2554535561297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2554535561553.

It is not an unprimeable number, because it can be changed into a prime (2554535561503) by changing a digit.

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, 2307058 + ... + 3229796.

It is an arithmetic number, because the mean of its divisors is an integer number (159061921200).

Almost surely, 2^{2554535561553} is an apocalyptic number.

It is an amenable number.

2554535561553 is a deficient number, since it is larger than the sum of its proper divisors (1262950547247).

2554535561553 is a wasteful number, since it uses less digits than its factorization.

2554535561553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933381 (or 933378 counting only the distinct ones).

The product of its digits is 33750000, while the sum is 54.

The spelling of 2554535561553 in words is "two trillion, five hundred fifty-four billion, five hundred thirty-five million, five hundred sixty-one thousand, five hundred fifty-three".