262825813 has 2 divisors, whose sum is σ = 262825814. Its totient is φ = 262825812.

The previous prime is 262825799. The next prime is 262825817. The reversal of 262825813 is 318528262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216884529 + 45941284 = 14727^2 + 6778^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-262825813 is a prime.

It is a super-3 number, since 3×262825813³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (262825817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131412906 + 131412907.

It is an arithmetic number, because the mean of its divisors is an integer number (131412907).

Almost surely, 2^262825813 is an apocalyptic number.

It is an amenable number.

262825813 is a deficient number, since it is larger than the sum of its proper divisors (1).

262825813 is an equidigital number, since it uses as much as digits as its factorization.

262825813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46080, while the sum is 37.

The square root of 262825813 is about 16211.9034354390. The cubic root of 262825813 is about 640.5543804860.

It can be divided in two parts, 2628 and 25813, that added together give a triangular number (28441 = T₂₃₈).

The spelling of 262825813 in words is "two hundred sixty-two million, eight hundred twenty-five thousand, eight hundred thirteen".