265431254503 has 2 divisors, whose sum is σ = 265431254504. Its totient is φ = 265431254502.

The previous prime is 265431254489. The next prime is 265431254509. The reversal of 265431254503 is 305452134562.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 265431254503 - 2⁹ = 265431253991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265431254509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132715627251 + 132715627252.

It is an arithmetic number, because the mean of its divisors is an integer number (132715627252).

Almost surely, 2^265431254503 is an apocalyptic number.

265431254503 is a deficient number, since it is larger than the sum of its proper divisors (1).

265431254503 is an equidigital number, since it uses as much as digits as its factorization.

265431254503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432000, while the sum is 40.

The spelling of 265431254503 in words is "two hundred sixty-five billion, four hundred thirty-one million, two hundred fifty-four thousand, five hundred three".