255913593 has 8 divisors (see below), whose sum is σ = 367465728. Its totient is φ = 157485264.

The previous prime is 255913591. The next prime is 255913633. The reversal of 255913593 is 395319552.

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

It is not a de Polignac number, because 255913593 - 2¹ = 255913591 is a prime.

It is a super-3 number, since 3×255913593³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (255913591) 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, 3280905 + ... + 3280982.

It is an arithmetic number, because the mean of its divisors is an integer number (45933216).

Almost surely, 2^255913593 is an apocalyptic number.

It is an amenable number.

255913593 is a deficient number, since it is larger than the sum of its proper divisors (111552135).

255913593 is a wasteful number, since it uses less digits than its factorization.

255913593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6561903.

The product of its digits is 182250, while the sum is 42.

The square root of 255913593 is about 15997.2995533621. The cubic root of 255913593 is about 634.8889739135. Note that the first 3 decimals are identical.

The spelling of 255913593 in words is "two hundred fifty-five million, nine hundred thirteen thousand, five hundred ninety-three".