255493013 has 4 divisors (see below), whose sum is σ = 255606540. Its totient is φ = 255379488.

The previous prime is 255493001. The next prime is 255493027. The reversal of 255493013 is 310394552.

255493013 = 11302² + 11303².

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 127757809 + 127735204 = 11303^2 + 11302^2 .

It is a cyclic number.

It is not a de Polignac number, because 255493013 - 2⁴ = 255492997 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 (255493033) 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, 53318 + ... + 57911.

It is an arithmetic number, because the mean of its divisors is an integer number (63901635).

Almost surely, 2^255493013 is an apocalyptic number.

255493013 is the 11303-rd centered square number.

It is an amenable number.

255493013 is a deficient number, since it is larger than the sum of its proper divisors (113527).

255493013 is a wasteful number, since it uses less digits than its factorization.

255493013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113526.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 255493013 is about 15984.1488043624. The cubic root of 255493013 is about 634.5409814346.

The spelling of 255493013 in words is "two hundred fifty-five million, four hundred ninety-three thousand, thirteen".