4052050443521 has 4 divisors (see below), whose sum is σ = 4052441691732. Its totient is φ = 4051659195312.

The previous prime is 4052050443503. The next prime is 4052050443533. The reversal of 4052050443521 is 1253440502504.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2786963136400 + 1265087307121 = 1669420^2 + 1124761^2 .

It is a cyclic number.

It is not a de Polignac number, because 4052050443521 - 2³⁰ = 4050976701697 is a prime.

It is a super-2 number, since 2×4052050443521² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4052050442521) 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, 195608570 + ... + 195629283.

It is an arithmetic number, because the mean of its divisors is an integer number (1013110422933).

Almost surely, 2^{4052050443521} is an apocalyptic number.

It is an amenable number.

4052050443521 is a deficient number, since it is larger than the sum of its proper divisors (391248211).

4052050443521 is a wasteful number, since it uses less digits than its factorization.

4052050443521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391248210.

The product of its (nonzero) digits is 96000, while the sum is 35.

The spelling of 4052050443521 in words is "four trillion, fifty-two billion, fifty million, four hundred forty-three thousand, five hundred twenty-one".