4056521012 has 6 divisors (see below), whose sum is σ = 7098911778. Its totient is φ = 2028260504.

The previous prime is 4056521009. The next prime is 4056521023. The reversal of 4056521012 is 2101256504.

4056521012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3934551076 + 121969936 = 62726^2 + 11044^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 507065123 + ... + 507065130.

It is an arithmetic number, because the mean of its divisors is an integer number (1183151963).

Almost surely, 2^4056521012 is an apocalyptic number.

It is an amenable number.

4056521012 is a deficient number, since it is larger than the sum of its proper divisors (3042390766).

4056521012 is a wasteful number, since it uses less digits than its factorization.

4056521012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014130257 (or 1014130255 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 4056521012 is about 63690.8236090569. The cubic root of 4056521012 is about 1594.8429023446.

Adding to 4056521012 its reverse (2101256504), we get a palindrome (6157777516).

The spelling of 4056521012 in words is "four billion, fifty-six million, five hundred twenty-one thousand, twelve".