265669057 has 2 divisors, whose sum is σ = 265669058. Its totient is φ = 265669056.

The previous prime is 265669037. The next prime is 265669073. The reversal of 265669057 is 750966562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143256961 + 122412096 = 11969^2 + 11064^2 .

It is a cyclic number.

It is not a de Polignac number, because 265669057 - 2¹⁵ = 265636289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 265668998 and 265669016.

It is not a weakly prime, because it can be changed into another prime (265669037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132834528 + 132834529.

It is an arithmetic number, because the mean of its divisors is an integer number (132834529).

Almost surely, 2^265669057 is an apocalyptic number.

It is an amenable number.

265669057 is a deficient number, since it is larger than the sum of its proper divisors (1).

265669057 is an equidigital number, since it uses as much as digits as its factorization.

265669057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 680400, while the sum is 46.

The square root of 265669057 is about 16299.3575640269. The cubic root of 265669057 is about 642.8559354498.

The spelling of 265669057 in words is "two hundred sixty-five million, six hundred sixty-nine thousand, fifty-seven".