256302225351 has 64 divisors (see below), whose sum is σ = 397669888000. Its totient is φ = 162960076800.

The previous prime is 256302225341. The next prime is 256302225353. The reversal of 256302225351 is 153522203652.

256302225351 is a `hidden beast` number, since 2 + 56 + 30 + 2 + 225 + 351 = 666.

It is not a de Polignac number, because 256302225351 - 2¹³ = 256302217159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256302225353) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19560000 + ... + 19573098.

It is an arithmetic number, because the mean of its divisors is an integer number (6213592000).

Almost surely, 2^256302225351 is an apocalyptic number.

256302225351 is a deficient number, since it is larger than the sum of its proper divisors (141367662649).

256302225351 is a wasteful number, since it uses less digits than its factorization.

256302225351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13477 (or 13471 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 256302225351 in words is "two hundred fifty-six billion, three hundred two million, two hundred twenty-five thousand, three hundred fifty-one".