2154520553 has 8 divisors (see below), whose sum is σ = 2224619520. Its totient is φ = 2084459040.

The previous prime is 2154520531. The next prime is 2154520639. The reversal of 2154520553 is 3550254512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2154520553 - 2¹⁰ = 2154519529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2154520513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151901 + ... + 165477.

It is an arithmetic number, because the mean of its divisors is an integer number (278077440).

Almost surely, 2^2154520553 is an apocalyptic number.

It is an amenable number.

2154520553 is a deficient number, since it is larger than the sum of its proper divisors (70098967).

2154520553 is a wasteful number, since it uses less digits than its factorization.

2154520553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18727.

The product of its (nonzero) digits is 30000, while the sum is 32.

The square root of 2154520553 is about 46416.8132576979. The cubic root of 2154520553 is about 1291.5668226193.

The spelling of 2154520553 in words is "two billion, one hundred fifty-four million, five hundred twenty thousand, five hundred fifty-three".