256210996 has 6 divisors (see below), whose sum is σ = 448369250. Its totient is φ = 128105496.

The previous prime is 256210993. The next prime is 256211003. The reversal of 256210996 is 699012652.

256210996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 253764900 + 2446096 = 15930^2 + 1564^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256210993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32026371 + ... + 32026378.

Almost surely, 2^256210996 is an apocalyptic number.

It is an amenable number.

256210996 is a deficient number, since it is larger than the sum of its proper divisors (192158254).

256210996 is a wasteful number, since it uses less digits than its factorization.

256210996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64052753 (or 64052751 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 256210996 is about 16006.5922669380. The cubic root of 256210996 is about 635.1348183374.

The spelling of 256210996 in words is "two hundred fifty-six million, two hundred ten thousand, nine hundred ninety-six".