4650521 has 2 divisors, whose sum is σ = 4650522. Its totient is φ = 4650520.

The previous prime is 4650511. The next prime is 4650551. The reversal of 4650521 is 1250564.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2676496 + 1974025 = 1636^2 + 1405^2 .

It is a cyclic number.

It is not a de Polignac number, because 4650521 - 2¹⁰ = 4649497 is a prime.

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 (4650511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2325260 + 2325261.

It is an arithmetic number, because the mean of its divisors is an integer number (2325261).

Almost surely, 2^4650521 is an apocalyptic number.

It is an amenable number.

4650521 is a deficient number, since it is larger than the sum of its proper divisors (1).

4650521 is an equidigital number, since it uses as much as digits as its factorization.

4650521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 4650521 is about 2156.5066658835. The cubic root of 4650521 is about 166.9169869614.

The spelling of 4650521 in words is "four million, six hundred fifty thousand, five hundred twenty-one".