265442851 has 2 divisors, whose sum is σ = 265442852. Its totient is φ = 265442850.

The previous prime is 265442833. The next prime is 265442857. The reversal of 265442851 is 158244562.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 265442851 - 2⁹ = 265442339 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 265442851.

It is not a weakly prime, because it can be changed into another prime (265442857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132721425 + 132721426.

It is an arithmetic number, because the mean of its divisors is an integer number (132721426).

Almost surely, 2^265442851 is an apocalyptic number.

265442851 is a deficient number, since it is larger than the sum of its proper divisors (1).

265442851 is an equidigital number, since it uses as much as digits as its factorization.

265442851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 76800, while the sum is 37.

The square root of 265442851 is about 16292.4169784596. The cubic root of 265442851 is about 642.6734287335.

The spelling of 265442851 in words is "two hundred sixty-five million, four hundred forty-two thousand, eight hundred fifty-one".