2153544523 has 24 divisors (see below), whose sum is σ = 2389546656. Its totient is φ = 1939392000.

The previous prime is 2153544517. The next prime is 2153544529. The reversal of 2153544523 is 3254453512.

It is an interprime number because it is at equal distance from previous prime (2153544517) and next prime (2153544529).

It is not a de Polignac number, because 2153544523 - 2²⁵ = 2119990091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2153544529) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1211011 + ... + 1212787.

It is an arithmetic number, because the mean of its divisors is an integer number (99564444).

Almost surely, 2^2153544523 is an apocalyptic number.

2153544523 is a deficient number, since it is larger than the sum of its proper divisors (236002133).

2153544523 is a wasteful number, since it uses less digits than its factorization.

2153544523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1975 (or 1962 counting only the distinct ones).

The product of its digits is 72000, while the sum is 34.

The square root of 2153544523 is about 46406.2983117594. The cubic root of 2153544523 is about 1291.3717601385.

The spelling of 2153544523 in words is "two billion, one hundred fifty-three million, five hundred forty-four thousand, five hundred twenty-three".