255500513 has 4 divisors (see below), whose sum is σ = 259689108. Its totient is φ = 251311920.

The previous prime is 255500501. The next prime is 255500549. The reversal of 255500513 is 315005552.

255500513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 133795489 + 121705024 = 11567^2 + 11032^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255500513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255500213) 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, 2094206 + ... + 2094327.

It is an arithmetic number, because the mean of its divisors is an integer number (64922277).

Almost surely, 2^255500513 is an apocalyptic number.

It is an amenable number.

255500513 is a deficient number, since it is larger than the sum of its proper divisors (4188595).

255500513 is an equidigital number, since it uses as much as digits as its factorization.

255500513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4188594.

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 255500513 is about 15984.3834100662. The cubic root of 255500513 is about 634.5471903595.

The spelling of 255500513 in words is "two hundred fifty-five million, five hundred thousand, five hundred thirteen".