265056457 has 2 divisors, whose sum is σ = 265056458. Its totient is φ = 265056456.

The previous prime is 265056443. The next prime is 265056481. The reversal of 265056457 is 754650562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139145616 + 125910841 = 11796^2 + 11221^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-265056457 is a prime.

It is not a weakly prime, because it can be changed into another prime (265056427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132528228 + 132528229.

It is an arithmetic number, because the mean of its divisors is an integer number (132528229).

Almost surely, 2^265056457 is an apocalyptic number.

It is an amenable number.

265056457 is a deficient number, since it is larger than the sum of its proper divisors (1).

265056457 is an equidigital number, since it uses as much as digits as its factorization.

265056457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252000, while the sum is 40.

The square root of 265056457 is about 16280.5545667216. The cubic root of 265056457 is about 642.3614397365.

The spelling of 265056457 in words is "two hundred sixty-five million, fifty-six thousand, four hundred fifty-seven".