256326522 has 16 divisors (see below), whose sum is σ = 513192672. Its totient is φ = 85352240.

The previous prime is 256326509. The next prime is 256326529. The reversal of 256326522 is 225623652.

It is not an unprimeable number, because it can be changed into a prime (256326529) 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, 16173 + ... + 27824.

It is an arithmetic number, because the mean of its divisors is an integer number (32074542).

Almost surely, 2^256326522 is an apocalyptic number.

256326522 is an abundant number, since it is smaller than the sum of its proper divisors (256866150).

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

256326522 is a wasteful number, since it uses less digits than its factorization.

256326522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44973.

The product of its digits is 43200, while the sum is 33.

The square root of 256326522 is about 16010.2005608924. The cubic root of 256326522 is about 635.2302651380.

The spelling of 256326522 in words is "two hundred fifty-six million, three hundred twenty-six thousand, five hundred twenty-two".