265291625213 has 2 divisors, whose sum is σ = 265291625214. Its totient is φ = 265291625212.

The previous prime is 265291625149. The next prime is 265291625231. The reversal of 265291625213 is 312526192562.

It is a happy number.

Together with next prime (265291625231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 264635138329 + 656486884 = 514427^2 + 25622^2 .

It is a cyclic number.

It is not a de Polignac number, because 265291625213 - 2⁶ = 265291625149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265291628213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132645812606 + 132645812607.

It is an arithmetic number, because the mean of its divisors is an integer number (132645812607).

Almost surely, 2^265291625213 is an apocalyptic number.

It is an amenable number.

265291625213 is a deficient number, since it is larger than the sum of its proper divisors (1).

265291625213 is an equidigital number, since it uses as much as digits as its factorization.

265291625213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 44.

The spelling of 265291625213 in words is "two hundred sixty-five billion, two hundred ninety-one million, six hundred twenty-five thousand, two hundred thirteen".