265606497 has 12 divisors (see below), whose sum is σ = 413165844. Its totient is φ = 163450080.

The previous prime is 265606493. The next prime is 265606499. The reversal of 265606497 is 794606562.

265606497 is a `hidden beast` number, since 26 + 560 + 64 + 9 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 114832656 + 150773841 = 10716^2 + 12279^2 .

It is not a de Polignac number, because 265606497 - 2² = 265606493 is a prime.

It is a super-2 number, since 2×265606497² = 141093622497222018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (265606493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1134954 + ... + 1135187.

It is an arithmetic number, because the mean of its divisors is an integer number (34430487).

Almost surely, 2^265606497 is an apocalyptic number.

It is an amenable number.

265606497 is a deficient number, since it is larger than the sum of its proper divisors (147559347).

265606497 is a wasteful number, since it uses less digits than its factorization.

265606497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2270160 (or 2270157 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 265606497 is about 16297.4383569934. The cubic root of 265606497 is about 642.8054713813.

The spelling of 265606497 in words is "two hundred sixty-five million, six hundred six thousand, four hundred ninety-seven".