255829407 has 4 divisors (see below), whose sum is σ = 341105880. Its totient is φ = 170552936.

The previous prime is 255829397. The next prime is 255829423. The reversal of 255829407 is 704928552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 255829407 - 2²⁰ = 254780831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255829477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42638232 + ... + 42638237.

It is an arithmetic number, because the mean of its divisors is an integer number (85276470).

Almost surely, 2^255829407 is an apocalyptic number.

255829407 is a deficient number, since it is larger than the sum of its proper divisors (85276473).

255829407 is an equidigital number, since it uses as much as digits as its factorization.

255829407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85276472.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 255829407 is about 15994.6680803323. The cubic root of 255829407 is about 634.8193480364.

The spelling of 255829407 in words is "two hundred fifty-five million, eight hundred twenty-nine thousand, four hundred seven".