256262515200 has 1440 divisors, whose sum is σ = 1047229223040. Its totient is φ = 59454259200.

The previous prime is 256262515123. The next prime is 256262515213. The reversal of 256262515200 is 2515262652.

256262515200 is a `hidden beast` number, since 2 + 5 + 6 + 2 + 625 + 1 + 5 + 20 + 0 = 666.

256262515200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (1440).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2641881552 + ... + 2641881648.

It is an arithmetic number, because the mean of its divisors is an integer number (727242516).

Almost surely, 2^256262515200 is an apocalyptic number.

256262515200 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 256262515200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (523614611520).

256262515200 is an abundant number, since it is smaller than the sum of its proper divisors (790966707840).

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

256262515200 is a wasteful number, since it uses less digits than its factorization.

256262515200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 256262515200 its reverse (2515262652), we get a palindrome (258777777852).

The spelling of 256262515200 in words is "two hundred fifty-six billion, two hundred sixty-two million, five hundred fifteen thousand, two hundred".