256072533 has 8 divisors (see below), whose sum is σ = 341589600. Its totient is φ = 170635248.

The previous prime is 256072529. The next prime is 256072541. The reversal of 256072533 is 335270652.

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

It is not a de Polignac number, because 256072533 - 2² = 256072529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 256072494 and 256072503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256072573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12003 + ... + 25616.

It is an arithmetic number, because the mean of its divisors is an integer number (42698700).

Almost surely, 2^256072533 is an apocalyptic number.

It is an amenable number.

256072533 is a deficient number, since it is larger than the sum of its proper divisors (85517067).

256072533 is a wasteful number, since it uses less digits than its factorization.

256072533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39891.

The product of its (nonzero) digits is 37800, while the sum is 33.

The square root of 256072533 is about 16002.2664957187. The cubic root of 256072533 is about 635.0203833331.

The spelling of 256072533 in words is "two hundred fifty-six million, seventy-two thousand, five hundred thirty-three".