256631096 has 16 divisors (see below), whose sum is σ = 484858440. Its totient is φ = 127335520.

The previous prime is 256631029. The next prime is 256631107. The reversal of 256631096 is 690136652.

It is a super-2 number, since 2×256631096² = 131719038868322432, which contains 22 as substring.

It is a congruent number.

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, 121391 + ... + 123486.

Almost surely, 2^256631096 is an apocalyptic number.

It is an amenable number.

256631096 is a deficient number, since it is larger than the sum of its proper divisors (228227344).

256631096 is a wasteful number, since it uses less digits than its factorization.

256631096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245014 (or 245010 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 256631096 is about 16019.7096103519. The cubic root of 256631096 is about 635.4817647243.

The spelling of 256631096 in words is "two hundred fifty-six million, six hundred thirty-one thousand, ninety-six".