265229897 has 2 divisors, whose sum is σ = 265229898. Its totient is φ = 265229896.

The previous prime is 265229857. The next prime is 265229917. The reversal of 265229897 is 798922562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221087161 + 44142736 = 14869^2 + 6644^2 .

It is a cyclic number.

It is not a de Polignac number, because 265229897 - 2¹⁴ = 265213513 is a prime.

It is not a weakly prime, because it can be changed into another prime (265229807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132614948 + 132614949.

It is an arithmetic number, because the mean of its divisors is an integer number (132614949).

Almost surely, 2^265229897 is an apocalyptic number.

It is an amenable number.

265229897 is a deficient number, since it is larger than the sum of its proper divisors (1).

265229897 is an equidigital number, since it uses as much as digits as its factorization.

265229897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 50.

The square root of 265229897 is about 16285.8802955198. The cubic root of 265229897 is about 642.5015191716.

The spelling of 265229897 in words is "two hundred sixty-five million, two hundred twenty-nine thousand, eight hundred ninety-seven".