255503513 has 16 divisors (see below), whose sum is σ = 268240896. Its totient is φ = 243135360.

The previous prime is 255503491. The next prime is 255503533. The reversal of 255503513 is 315305552.

It is a cyclic number.

It is not a de Polignac number, because 255503513 - 2⁶ = 255503449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255503533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 666920 + ... + 667302.

It is an arithmetic number, because the mean of its divisors is an integer number (16765056).

Almost surely, 2^255503513 is an apocalyptic number.

It is an amenable number.

255503513 is a deficient number, since it is larger than the sum of its proper divisors (12737383).

255503513 is a wasteful number, since it uses less digits than its factorization.

255503513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784.

The product of its (nonzero) digits is 11250, while the sum is 29.

The square root of 255503513 is about 15984.4772513836. The cubic root of 255503513 is about 634.5496738955.

The spelling of 255503513 in words is "two hundred fifty-five million, five hundred three thousand, five hundred thirteen".