2052969621 has 4 divisors (see below), whose sum is σ = 2737292832. Its totient is φ = 1368646412.

The previous prime is 2052969601. The next prime is 2052969629. The reversal of 2052969621 is 1269692502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2052969621 - 2⁶ = 2052969557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2052969629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342161601 + ... + 342161606.

It is an arithmetic number, because the mean of its divisors is an integer number (684323208).

Almost surely, 2^2052969621 is an apocalyptic number.

It is an amenable number.

2052969621 is a deficient number, since it is larger than the sum of its proper divisors (684323211).

2052969621 is an equidigital number, since it uses as much as digits as its factorization.

2052969621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684323210.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 2052969621 is about 45309.7078008676. The cubic root of 2052969621 is about 1270.9471969509.

The spelling of 2052969621 in words is "two billion, fifty-two million, nine hundred sixty-nine thousand, six hundred twenty-one".