2053640403 has 12 divisors (see below), whose sum is σ = 3122494440. Its totient is φ = 1297035936.

The previous prime is 2053640401. The next prime is 2053640411. The reversal of 2053640403 is 3040463502.

It is not a de Polignac number, because 2053640403 - 2¹ = 2053640401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2053640401) 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, 6004626 + ... + 6004967.

It is an arithmetic number, because the mean of its divisors is an integer number (260207870).

Almost surely, 2^2053640403 is an apocalyptic number.

2053640403 is a deficient number, since it is larger than the sum of its proper divisors (1068854037).

2053640403 is a wasteful number, since it uses less digits than its factorization.

2053640403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12009618 (or 12009615 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 2053640403 is about 45317.1093848670. The cubic root of 2053640403 is about 1271.0856038810.

The spelling of 2053640403 in words is "two billion, fifty-three million, six hundred forty thousand, four hundred three".