265063531 has 2 divisors, whose sum is σ = 265063532. Its totient is φ = 265063530.

The previous prime is 265063501. The next prime is 265063537. The reversal of 265063531 is 135360562.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 265063531 - 2⁵ = 265063499 is a prime.

It is a super-2 number, since 2×265063531² = 140517350932375922, which contains 22 as substring.

It is equal to p_14457037 and since 265063531 and 14457037 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 265063493 and 265063502.

It is not a weakly prime, because it can be changed into another prime (265063537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132531765 + 132531766.

It is an arithmetic number, because the mean of its divisors is an integer number (132531766).

Almost surely, 2^265063531 is an apocalyptic number.

265063531 is a deficient number, since it is larger than the sum of its proper divisors (1).

265063531 is an equidigital number, since it uses as much as digits as its factorization.

265063531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 265063531 is about 16280.7718183138. The cubic root of 265063531 is about 642.3671542730.

The spelling of 265063531 in words is "two hundred sixty-five million, sixty-three thousand, five hundred thirty-one".