256550151 has 32 divisors (see below), whose sum is σ = 402958080. Its totient is φ = 143136000.

The previous prime is 256550149. The next prime is 256550167. The reversal of 256550151 is 151055652.

256550151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 256550151 - 2¹ = 256550149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256550171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 243576 + ... + 244626.

It is an arithmetic number, because the mean of its divisors is an integer number (12592440).

Almost surely, 2^256550151 is an apocalyptic number.

256550151 is a deficient number, since it is larger than the sum of its proper divisors (146407929).

256550151 is a wasteful number, since it uses less digits than its factorization.

256550151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1647.

The product of its (nonzero) digits is 7500, while the sum is 30.

The square root of 256550151 is about 16017.1829920245. The cubic root of 256550151 is about 635.4149444502.

The spelling of 256550151 in words is "two hundred fifty-six million, five hundred fifty thousand, one hundred fifty-one".