298256555520 has 1920 divisors, whose sum is σ = 1360455782400. Its totient is φ = 59825848320.

The previous prime is 298256555459. The next prime is 298256555579. The reversal of 298256555520 is 25555652892.

298256555520 is a `hidden beast` number, since 2 + 9 + 8 + 2 + 5 + 65 + 55 + 520 = 666.

It is a tau number, because it is divible by the number of its divisors (1920).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 4085706204 + ... + 4085706276.

It is an arithmetic number, because the mean of its divisors is an integer number (708570720).

Almost surely, 2^298256555520 is an apocalyptic number.

298256555520 is a gapful number since it is divisible by the number (20) 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 298256555520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (680227891200).

298256555520 is an abundant number, since it is smaller than the sum of its proper divisors (1062199226880).

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

298256555520 is a wasteful number, since it uses less digits than its factorization.

298256555520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 10800000, while the sum is 54.

It can be divided in two parts, 298256 and 555520, that added together give a square (853776 = 924²).

The spelling of 298256555520 in words is "two hundred ninety-eight billion, two hundred fifty-six million, five hundred fifty-five thousand, five hundred twenty".