4665492521 has 2 divisors, whose sum is σ = 4665492522. Its totient is φ = 4665492520.

The previous prime is 4665492511. The next prime is 4665492547. The reversal of 4665492521 is 1252945664.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4568272921 + 97219600 = 67589^2 + 9860^2 .

It is a cyclic number.

It is not a de Polignac number, because 4665492521 - 2¹⁰ = 4665491497 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4665492511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2332746260 + 2332746261.

It is an arithmetic number, because the mean of its divisors is an integer number (2332746261).

Almost surely, 2^4665492521 is an apocalyptic number.

It is an amenable number.

4665492521 is a deficient number, since it is larger than the sum of its proper divisors (1).

4665492521 is an equidigital number, since it uses as much as digits as its factorization.

4665492521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 518400, while the sum is 44.

The square root of 4665492521 is about 68304.4106994563. The cubic root of 4665492521 is about 1670.9591488980.

The spelling of 4665492521 in words is "four billion, six hundred sixty-five million, four hundred ninety-two thousand, five hundred twenty-one".