5745521 has 2 divisors, whose sum is σ = 5745522. Its totient is φ = 5745520.

The previous prime is 5745517. The next prime is 5745539. The reversal of 5745521 is 1255475.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4145296 + 1600225 = 2036^2 + 1265^2 .

It is a cyclic number.

It is not a de Polignac number, because 5745521 - 2² = 5745517 is a prime.

It is a super-2 number, since 2×5745521² = 66022023122882, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (5745221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2872760 + 2872761.

It is an arithmetic number, because the mean of its divisors is an integer number (2872761).

Almost surely, 2^5745521 is an apocalyptic number.

It is an amenable number.

5745521 is a deficient number, since it is larger than the sum of its proper divisors (1).

5745521 is an equidigital number, since it uses as much as digits as its factorization.

5745521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7000, while the sum is 29.

The square root of 5745521 is about 2396.9816436510. The cubic root of 5745521 is about 179.1058641588.

The spelling of 5745521 in words is "five million, seven hundred forty-five thousand, five hundred twenty-one".