2153551544 has 32 divisors (see below), whose sum is σ = 4120755120. Its totient is φ = 1054749696.

The previous prime is 2153551537. The next prime is 2153551559. The reversal of 2153551544 is 4451553512.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 281579 + ... + 289125.

Almost surely, 2^2153551544 is an apocalyptic number.

It is an amenable number.

2153551544 is a deficient number, since it is larger than the sum of its proper divisors (1967203576).

2153551544 is a wasteful number, since it uses less digits than its factorization.

2153551544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8279 (or 8275 counting only the distinct ones).

The product of its digits is 60000, while the sum is 35.

The square root of 2153551544 is about 46406.3739587570. The cubic root of 2153551544 is about 1291.3731635166.

The spelling of 2153551544 in words is "two billion, one hundred fifty-three million, five hundred fifty-one thousand, five hundred forty-four".