5765521 has 2 divisors, whose sum is σ = 5765522. Its totient is φ = 5765520.

The previous prime is 5765503. The next prime is 5765561. The reversal of 5765521 is 1255675.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4579600 + 1185921 = 2140^2 + 1089^2 .

It is a cyclic number.

It is not a de Polignac number, because 5765521 - 2⁹ = 5765009 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 5² + 7⁸ + 6² + 5² + 5⁴ + 2³ + 1 .

5765521 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (5765561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2882760 + 2882761.

It is an arithmetic number, because the mean of its divisors is an integer number (2882761).

Almost surely, 2^5765521 is an apocalyptic number.

It is an amenable number.

5765521 is a deficient number, since it is larger than the sum of its proper divisors (1).

5765521 is an equidigital number, since it uses as much as digits as its factorization.

5765521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10500, while the sum is 31.

The square root of 5765521 is about 2401.1499328447. The cubic root of 5765521 is about 179.3134443408.

The spelling of 5765521 in words is "five million, seven hundred sixty-five thousand, five hundred twenty-one".