256151533 has 8 divisors (see below), whose sum is σ = 280323360. Its totient is φ = 232127280.

The previous prime is 256151527. The next prime is 256151569. The reversal of 256151533 is 335151652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 256151533 - 2⁵ = 256151501 is a prime.

It is a super-2 number, since 2×256151533² = 131227215716500178, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 256151495 and 256151504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256151513) 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 7 ways as a sum of consecutive naturals, for example, 33243 + ... + 40216.

It is an arithmetic number, because the mean of its divisors is an integer number (35040420).

Almost surely, 2^256151533 is an apocalyptic number.

It is an amenable number.

256151533 is a deficient number, since it is larger than the sum of its proper divisors (24171827).

256151533 is a wasteful number, since it uses less digits than its factorization.

256151533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73787.

The product of its digits is 13500, while the sum is 31.

The square root of 256151533 is about 16004.7347057051. The cubic root of 256151533 is about 635.0856792237.

The spelling of 256151533 in words is "two hundred fifty-six million, one hundred fifty-one thousand, five hundred thirty-three".