2052505421 has 8 divisors (see below), whose sum is σ = 2248180920. Its totient is φ = 1865156608.

The previous prime is 2052505409. The next prime is 2052505501. The reversal of 2052505421 is 1245052502.

It can be written as a sum of positive squares in 4 ways, for example, as 1275489796 + 777015625 = 35714^2 + 27875^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2052505421 - 2¹⁰ = 2052504397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2052505321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2081156 + ... + 2082141.

It is an arithmetic number, because the mean of its divisors is an integer number (281022615).

Almost surely, 2^2052505421 is an apocalyptic number.

It is an amenable number.

2052505421 is a deficient number, since it is larger than the sum of its proper divisors (195675499).

2052505421 is a wasteful number, since it uses less digits than its factorization.

2052505421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4163343.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 2052505421 is about 45304.5849887183. The cubic root of 2052505421 is about 1270.8513978128.

Adding to 2052505421 its reverse (1245052502), we get a palindrome (3297557923).

The spelling of 2052505421 in words is "two billion, fifty-two million, five hundred five thousand, four hundred twenty-one".