256241522 has 8 divisors (see below), whose sum is σ = 384471900. Its totient is φ = 128084224.

The previous prime is 256241497. The next prime is 256241549. The reversal of 256241522 is 225142652.

It can be written as a sum of positive squares in 2 ways, for example, as 252778201 + 3463321 = 15899^2 + 1861^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8447 + ... + 24162.

Almost surely, 2^256241522 is an apocalyptic number.

256241522 is a deficient number, since it is larger than the sum of its proper divisors (128230378).

256241522 is a wasteful number, since it uses less digits than its factorization.

256241522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36540.

The product of its digits is 9600, while the sum is 29.

The square root of 256241522 is about 16007.5457831611. The cubic root of 256241522 is about 635.1600415009.

The spelling of 256241522 in words is "two hundred fifty-six million, two hundred forty-one thousand, five hundred twenty-two".