4050521020 has 120 divisors (see below), whose sum is σ = 10541722464. Its totient is φ = 1280657664.

The previous prime is 4050521003. The next prime is 4050521051. The reversal of 4050521020 is 201250504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3998034 + ... + 3999046.

Almost surely, 2^4050521020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4050521020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5270861232).

4050521020 is an abundant number, since it is smaller than the sum of its proper divisors (6491201444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4050521020 is a wasteful number, since it uses less digits than its factorization.

4050521020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081 (or 1040 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 4050521020 is about 63643.7036948668. The cubic root of 4050521020 is about 1594.0562047155.

Adding to 4050521020 its reverse (201250504), we get a palindrome (4251771524).

The spelling of 4050521020 in words is "four billion, fifty million, five hundred twenty-one thousand, twenty".