4255512520 has 64 divisors (see below), whose sum is σ = 10978156800. Its totient is φ = 1454311680.

The previous prime is 4255512473. The next prime is 4255512533. The reversal of 4255512520 is 252155524.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62646 + ... + 111514.

It is an arithmetic number, because the mean of its divisors is an integer number (171533700).

Almost surely, 2^4255512520 is an apocalyptic number.

4255512520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4255512520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5489078400).

4255512520 is an abundant number, since it is smaller than the sum of its proper divisors (6722644280).

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

4255512520 is a wasteful number, since it uses less digits than its factorization.

4255512520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49198 (or 49194 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 4255512520 is about 65234.2894496445. The cubic root of 4255512520 is about 1620.5059284519.

The spelling of 4255512520 in words is "four billion, two hundred fifty-five million, five hundred twelve thousand, five hundred twenty".