256216248 has 48 divisors (see below), whose sum is σ = 734741280. Its totient is φ = 80381184.

The previous prime is 256216237. The next prime is 256216249. The reversal of 256216248 is 842612652.

It is a happy number.

256216248 is a `hidden beast` number, since 2 + 5 + 6 + 21 + 624 + 8 = 666.

256216248 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256216249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103440 + ... + 105887.

It is an arithmetic number, because the mean of its divisors is an integer number (15307110).

Almost surely, 2^256216248 is an apocalyptic number.

It is an amenable number.

256216248 is an abundant number, since it is smaller than the sum of its proper divisors (478525032).

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

256216248 is a wasteful number, since it uses less digits than its factorization.

256216248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209356 (or 209349 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 256216248 is about 16006.7563235029. The cubic root of 256216248 is about 635.1391581268.

The spelling of 256216248 in words is "two hundred fifty-six million, two hundred sixteen thousand, two hundred forty-eight".