255803357 has 4 divisors (see below), whose sum is σ = 256676700. Its totient is φ = 254930016.

The previous prime is 255803347. The next prime is 255803381. The reversal of 255803357 is 753308552.

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

It can be written as a sum of positive squares in 2 ways, for example, as 239042521 + 16760836 = 15461^2 + 4094^2 .

It is a cyclic number.

It is not a de Polignac number, because 255803357 - 2⁴ = 255803341 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 255803357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255803347) 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, 436232 + ... + 436817.

It is an arithmetic number, because the mean of its divisors is an integer number (64169175).

Almost surely, 2^255803357 is an apocalyptic number.

It is an amenable number.

255803357 is a deficient number, since it is larger than the sum of its proper divisors (873343).

255803357 is an equidigital number, since it uses as much as digits as its factorization.

255803357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873342.

The product of its (nonzero) digits is 126000, while the sum is 38.

The square root of 255803357 is about 15993.8537257285. The cubic root of 255803357 is about 634.7978003372.

The spelling of 255803357 in words is "two hundred fifty-five million, eight hundred three thousand, three hundred fifty-seven".