2051521053 has 32 divisors (see below), whose sum is σ = 2922264576. Its totient is φ = 1275740928.

The previous prime is 2051521033. The next prime is 2051521061. The reversal of 2051521053 is 3501251502.

It is a happy number.

It is not a de Polignac number, because 2051521053 - 2⁸ = 2051520797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051521033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4430700 + ... + 4431162.

It is an arithmetic number, because the mean of its divisors is an integer number (91320768).

Almost surely, 2^2051521053 is an apocalyptic number.

It is an amenable number.

2051521053 is a deficient number, since it is larger than the sum of its proper divisors (870743523).

2051521053 is a wasteful number, since it uses less digits than its factorization.

2051521053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 2051521053 is about 45293.7197964574. The cubic root of 2051521053 is about 1270.6482013555.

Adding to 2051521053 its reverse (3501251502), we get a palindrome (5552772555).

The spelling of 2051521053 in words is "two billion, fifty-one million, five hundred twenty-one thousand, fifty-three".