256519150 has 48 divisors (see below), whose sum is σ = 492696144. Its totient is φ = 99290880.

The previous prime is 256519147. The next prime is 256519157. The reversal of 256519150 is 51915652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256519157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 578829 + ... + 579271.

It is an arithmetic number, because the mean of its divisors is an integer number (10264503).

Almost surely, 2^256519150 is an apocalyptic number.

256519150 is a deficient number, since it is larger than the sum of its proper divisors (236176994).

256519150 is a wasteful number, since it uses less digits than its factorization.

256519150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805 (or 800 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 34.

The square root of 256519150 is about 16016.2152208317. The cubic root of 256519150 is about 635.3893493347.

The spelling of 256519150 in words is "two hundred fifty-six million, five hundred nineteen thousand, one hundred fifty".