265551763 has 2 divisors, whose sum is σ = 265551764. Its totient is φ = 265551762.

The previous prime is 265551751. The next prime is 265551773. The reversal of 265551763 is 367155562.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 265551763 - 2¹³ = 265543571 is a prime.

It is not a weakly prime, because it can be changed into another prime (265551773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132775881 + 132775882.

It is an arithmetic number, because the mean of its divisors is an integer number (132775882).

Almost surely, 2^265551763 is an apocalyptic number.

265551763 is a deficient number, since it is larger than the sum of its proper divisors (1).

265551763 is an equidigital number, since it uses as much as digits as its factorization.

265551763 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 189000, while the sum is 40.

The square root of 265551763 is about 16295.7590495196. The cubic root of 265551763 is about 642.7613136616.

The spelling of 265551763 in words is "two hundred sixty-five million, five hundred fifty-one thousand, seven hundred sixty-three".