265545493 has 2 divisors, whose sum is σ = 265545494. Its totient is φ = 265545492.

The previous prime is 265545487. The next prime is 265545499. The reversal of 265545493 is 394545562.

It is a balanced prime because it is at equal distance from previous prime (265545487) and next prime (265545499).

It can be written as a sum of positive squares in only one way, i.e., 185586129 + 79959364 = 13623^2 + 8942^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-265545493 is a prime.

It is a super-2 number, since 2×265545493² = 141028817705226098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265545499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132772746 + 132772747.

It is an arithmetic number, because the mean of its divisors is an integer number (132772747).

Almost surely, 2^265545493 is an apocalyptic number.

It is an amenable number.

265545493 is a deficient number, since it is larger than the sum of its proper divisors (1).

265545493 is an equidigital number, since it uses as much as digits as its factorization.

265545493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648000, while the sum is 43.

The square root of 265545493 is about 16295.5666670417. The cubic root of 265545493 is about 642.7562548297.

The spelling of 265545493 in words is "two hundred sixty-five million, five hundred forty-five thousand, four hundred ninety-three".