255473293 has 4 divisors (see below), whose sum is σ = 255507040. Its totient is φ = 255439548.

The previous prime is 255473279. The next prime is 255473299. The reversal of 255473293 is 392374552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 255473293 - 2¹³ = 255465101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255473299) 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, 328 + ... + 22606.

It is an arithmetic number, because the mean of its divisors is an integer number (63876760).

Almost surely, 2^255473293 is an apocalyptic number.

It is an amenable number.

255473293 is a deficient number, since it is larger than the sum of its proper divisors (33747).

255473293 is a wasteful number, since it uses less digits than its factorization.

255473293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33746.

The product of its digits is 226800, while the sum is 40.

The square root of 255473293 is about 15983.5319313348. The cubic root of 255473293 is about 634.5246555216.

The spelling of 255473293 in words is "two hundred fifty-five million, four hundred seventy-three thousand, two hundred ninety-three".