256425316 has 24 divisors (see below), whose sum is σ = 525361536. Its totient is φ = 107215680.

The previous prime is 256425313. The next prime is 256425343. The reversal of 256425316 is 613524652.

It is not an unprimeable number, because it can be changed into a prime (256425313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110536 + ... + 112831.

It is an arithmetic number, because the mean of its divisors is an integer number (21890064).

Almost surely, 2^256425316 is an apocalyptic number.

It is an amenable number.

256425316 is an abundant number, since it is smaller than the sum of its proper divisors (268936220).

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

256425316 is a wasteful number, since it uses less digits than its factorization.

256425316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223419 (or 223417 counting only the distinct ones).

The product of its digits is 43200, while the sum is 34.

The square root of 256425316 is about 16013.2856091434. The cubic root of 256425316 is about 635.3118653270.

Adding to 256425316 its reverse (613524652), we get a palindrome (869949968).

The spelling of 256425316 in words is "two hundred fifty-six million, four hundred twenty-five thousand, three hundred sixteen".