255790685 has 8 divisors (see below), whose sum is σ = 313479936. Its totient is φ = 200278480.

The previous prime is 255790663. The next prime is 255790697. The reversal of 255790685 is 586097552.

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

It is not a de Polignac number, because 255790685 - 2⁶ = 255790621 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 544001 + ... + 544470.

It is an arithmetic number, because the mean of its divisors is an integer number (39184992).

Almost surely, 2^255790685 is an apocalyptic number.

It is an amenable number.

255790685 is a deficient number, since it is larger than the sum of its proper divisors (57689251).

255790685 is a wasteful number, since it uses less digits than its factorization.

255790685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088523.

The product of its (nonzero) digits is 756000, while the sum is 47.

The square root of 255790685 is about 15993.4575686435. The cubic root of 255790685 is about 634.7873179486.

The spelling of 255790685 in words is "two hundred fifty-five million, seven hundred ninety thousand, six hundred eighty-five".