256520222514 has 16 divisors (see below), whose sum is σ = 570044939040. Its totient is φ = 85506740820.

The previous prime is 256520222507. The next prime is 256520222521. The reversal of 256520222514 is 415222025652.

256520222514 is a `hidden beast` number, since 2 + 565 + 20 + 2 + 22 + 51 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (256520222507) and next prime (256520222521).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2375187192 + ... + 2375187299.

It is an arithmetic number, because the mean of its divisors is an integer number (35627808690).

Almost surely, 2^256520222514 is an apocalyptic number.

256520222514 is an abundant number, since it is smaller than the sum of its proper divisors (313524716526).

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

256520222514 is a wasteful number, since it uses less digits than its factorization.

256520222514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4750374502 (or 4750374496 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The spelling of 256520222514 in words is "two hundred fifty-six billion, five hundred twenty million, two hundred twenty-two thousand, five hundred fourteen".