265223377 has 2 divisors, whose sum is σ = 265223378. Its totient is φ = 265223376.

The previous prime is 265223347. The next prime is 265223389. The reversal of 265223377 is 773322562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 255008961 + 10214416 = 15969^2 + 3196^2 .

It is a cyclic number.

It is not a de Polignac number, because 265223377 - 2²³ = 256834769 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (265223347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132611688 + 132611689.

It is an arithmetic number, because the mean of its divisors is an integer number (132611689).

Almost surely, 2^265223377 is an apocalyptic number.

It is an amenable number.

265223377 is a deficient number, since it is larger than the sum of its proper divisors (1).

265223377 is an equidigital number, since it uses as much as digits as its factorization.

265223377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 37.

The square root of 265223377 is about 16285.6801208915. The cubic root of 265223377 is about 642.4962543752.

The spelling of 265223377 in words is "two hundred sixty-five million, two hundred twenty-three thousand, three hundred seventy-seven".