4755521 has 2 divisors, whose sum is σ = 4755522. Its totient is φ = 4755520.

The previous prime is 4755511. The next prime is 4755523. The reversal of 4755521 is 1255574.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4494400 + 261121 = 2120^2 + 511^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4755521 is a prime.

It is a super-2 number, since 2×4755521² = 45229959962882, which contains 22 as substring.

Together with 4755523, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4755523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2377760 + 2377761.

It is an arithmetic number, because the mean of its divisors is an integer number (2377761).

Almost surely, 2^4755521 is an apocalyptic number.

It is an amenable number.

4755521 is a deficient number, since it is larger than the sum of its proper divisors (1).

4755521 is an equidigital number, since it uses as much as digits as its factorization.

4755521 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 4755521 is about 2180.7157082022. The cubic root of 4755521 is about 168.1638730748.

The spelling of 4755521 in words is "four million, seven hundred fifty-five thousand, five hundred twenty-one".