4145255520 has 384 divisors, whose sum is σ = 16317407232. Its totient is φ = 862617600.

The previous prime is 4145255509. The next prime is 4145255533. The reversal of 4145255520 is 255525414.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1769550 + ... + 1771890.

It is an arithmetic number, because the mean of its divisors is an integer number (42493248).

Almost surely, 2^4145255520 is an apocalyptic number.

4145255520 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 4145255520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8158703616).

4145255520 is an abundant number, since it is smaller than the sum of its proper divisors (12172151712).

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

4145255520 is a wasteful number, since it uses less digits than its factorization.

4145255520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2414 (or 2406 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 33.

The square root of 4145255520 is about 64383.6587963126. The cubic root of 4145255520 is about 1606.3879416022.

The spelling of 4145255520 in words is "four billion, one hundred forty-five million, two hundred fifty-five thousand, five hundred twenty".