4255221524 has 6 divisors (see below), whose sum is σ = 7446637674. Its totient is φ = 2127610760.

The previous prime is 4255221521. The next prime is 4255221539. The reversal of 4255221524 is 4251225524.

4255221524 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., 2413953424 + 1841268100 = 49132^2 + 42910^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4255221521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 531902687 + ... + 531902694.

It is an arithmetic number, because the mean of its divisors is an integer number (1241106279).

Almost surely, 2^4255221524 is an apocalyptic number.

It is an amenable number.

4255221524 is a deficient number, since it is larger than the sum of its proper divisors (3191416150).

4255221524 is a wasteful number, since it uses less digits than its factorization.

4255221524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063805385 (or 1063805383 counting only the distinct ones).

The product of its digits is 32000, while the sum is 32.

The square root of 4255221524 is about 65232.0590200861. The cubic root of 4255221524 is about 1620.4689903636.

The spelling of 4255221524 in words is "four billion, two hundred fifty-five million, two hundred twenty-one thousand, five hundred twenty-four".