2051540253 has 12 divisors (see below), whose sum is σ = 3386669728. Its totient is φ = 1172308680.

The previous prime is 2051540237. The next prime is 2051540273. The reversal of 2051540253 is 3520451502.

It is a happy number.

2051540253 is a `hidden beast` number, since 20 + 51 + 540 + 2 + 53 = 666.

It is not a de Polignac number, because 2051540253 - 2⁴ = 2051540237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051540213) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 16282003 + ... + 16282128.

Almost surely, 2^2051540253 is an apocalyptic number.

It is an amenable number.

2051540253 is a deficient number, since it is larger than the sum of its proper divisors (1335129475).

2051540253 is a wasteful number, since it uses less digits than its factorization.

2051540253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32564144 (or 32564141 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 2051540253 is about 45293.9317458752. The cubic root of 2051540253 is about 1270.6521653037.

Adding to 2051540253 its reverse (3520451502), we get a palindrome (5571991755).

The spelling of 2051540253 in words is "two billion, fifty-one million, five hundred forty thousand, two hundred fifty-three".