2040553491 has 12 divisors (see below), whose sum is σ = 2844176328. Its totient is φ = 1301221504.

The previous prime is 2040553483. The next prime is 2040553523. The reversal of 2040553491 is 1943550402.

It is not a de Polignac number, because 2040553491 - 2³ = 2040553483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2040553421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 641310 + ... + 644483.

It is an arithmetic number, because the mean of its divisors is an integer number (237014694).

Almost surely, 2^2040553491 is an apocalyptic number.

2040553491 is a deficient number, since it is larger than the sum of its proper divisors (803622837).

2040553491 is a wasteful number, since it uses less digits than its factorization.

2040553491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285842 (or 1285819 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 2040553491 is about 45172.4859953490. The cubic root of 2040553491 is about 1268.3798322313.

The spelling of 2040553491 in words is "two billion, forty million, five hundred fifty-three thousand, four hundred ninety-one".