4255120520 has 64 divisors (see below), whose sum is σ = 11417483520. Its totient is φ = 1395465984.

The previous prime is 4255120511. The next prime is 4255120523. The reversal of 4255120520 is 250215524.

It is a self number, because there is not a number n which added to its sum of digits gives 4255120520.

It is not an unprimeable number, because it can be changed into a prime (4255120523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 323927 + ... + 336806.

It is an arithmetic number, because the mean of its divisors is an integer number (178398180).

Almost surely, 2^4255120520 is an apocalyptic number.

4255120520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4255120520 is an abundant number, since it is smaller than the sum of its proper divisors (7162363000).

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

4255120520 is a wasteful number, since it uses less digits than its factorization.

4255120520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660774 (or 660770 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 4255120520 is about 65231.2848256111. The cubic root of 4255120520 is about 1620.4561688497.

The spelling of 4255120520 in words is "four billion, two hundred fifty-five million, one hundred twenty thousand, five hundred twenty".