255513406 has 8 divisors (see below), whose sum is σ = 403442280. Its totient is φ = 121032648.

The previous prime is 255513389. The next prime is 255513407. The reversal of 255513406 is 604315552.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255513407) 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, 3361981 + ... + 3362056.

It is an arithmetic number, because the mean of its divisors is an integer number (50430285).

Almost surely, 2^255513406 is an apocalyptic number.

255513406 is a deficient number, since it is larger than the sum of its proper divisors (147928874).

255513406 is a wasteful number, since it uses less digits than its factorization.

255513406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6724058.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 255513406 is about 15984.7867048641. The cubic root of 255513406 is about 634.5578636314.

Adding to 255513406 its reverse (604315552), we get a palindrome (859828958).

The spelling of 255513406 in words is "two hundred fifty-five million, five hundred thirteen thousand, four hundred six".