2765531 has 2 divisors, whose sum is σ = 2765532. Its totient is φ = 2765530.

The previous prime is 2765519. The next prime is 2765551. The reversal of 2765531 is 1355672.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2765531 - 2¹⁴ = 2749147 is a prime.

It is a super-2 number, since 2×2765531² = 15296323423922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2765494 and 2765503.

It is not a weakly prime, because it can be changed into another prime (2765551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1382765 + 1382766.

It is an arithmetic number, because the mean of its divisors is an integer number (1382766).

2^2765531 is an apocalyptic number.

2765531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2765531 is an equidigital number, since it uses as much as digits as its factorization.

2765531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6300, while the sum is 29.

The square root of 2765531 is about 1662.9885748255. The cubic root of 2765531 is about 140.3652198869.

The spelling of 2765531 in words is "two million, seven hundred sixty-five thousand, five hundred thirty-one".