256165050 has 24 divisors (see below), whose sum is σ = 635289696. Its totient is φ = 68310640.

The previous prime is 256165043. The next prime is 256165057. The reversal of 256165050 is 50561652.

256165050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (256165043) and next prime (256165057).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 256164999 and 256165017.

It is not an unprimeable number, because it can be changed into a prime (256165057) 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, 853734 + ... + 854033.

It is an arithmetic number, because the mean of its divisors is an integer number (26470404).

Almost surely, 2^256165050 is an apocalyptic number.

256165050 is an abundant number, since it is smaller than the sum of its proper divisors (379124646).

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

256165050 is a wasteful number, since it uses less digits than its factorization.

256165050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707782 (or 1707777 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 256165050 is about 16005.1569814232. The cubic root of 256165050 is about 635.0968500881.

The spelling of 256165050 in words is "two hundred fifty-six million, one hundred sixty-five thousand, fifty".