265245502500431 has 2 divisors, whose sum is σ = 265245502500432. Its totient is φ = 265245502500430.

The previous prime is 265245502500413. The next prime is 265245502500443. The reversal of 265245502500431 is 134005205542562.

It is a happy number.

Together with previous prime (265245502500413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 265245502500431 - 2¹⁸ = 265245502238287 is a prime.

It is a super-2 number, since 2×265245502500431² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265245502500931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132622751250215 + 132622751250216.

It is an arithmetic number, because the mean of its divisors is an integer number (132622751250216).

Almost surely, 2^{265245502500431} is an apocalyptic number.

265245502500431 is a deficient number, since it is larger than the sum of its proper divisors (1).

265245502500431 is an equidigital number, since it uses as much as digits as its factorization.

265245502500431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440000, while the sum is 44.

The spelling of 265245502500431 in words is "two hundred sixty-five trillion, two hundred forty-five billion, five hundred two million, five hundred thousand, four hundred thirty-one".